National Style 10-P-130 Fluid-End Assembly Item # Part Number Description Approx. Weight (lbs) Qty Required
1 1367YXX Liner 3
2 2930-XX Liner Gasket 3
3 2408836 Liner Wearplate 3
4 2988 Wearplate and Module Gasket 6
5 XXBYY Piston 3
6 568-225 Piston Seal 3
7 1287-32 Piston Rod (With Elastic Stop Nut) *Torque to 1000 FT.LBS. 3
8 AIM-4 ESN Piston Rod Nut 3
9 1287-1 Sub Rod 3
10C 4018-93 Bolt (5/8″ x 6-1/2″ Grade 8 Bolt With Lock Nut, and Washer) *Torque to 150 FT.LBS. 12
10B 1200130 Pipe (3/8″ x 13″ Galvanized, and Threaded on One End) 3
10A 1200H30 Hose (1/2″ x 30″ With 1/2″ Male x 3/8″ Male Connections) 3
10 1287-CW Rod Clamp (With Water Jacket) 3
11 1200G87 Pony Rod 3
12 – Valve Complete 6
12A 773-1 Valve Complete Full-Opening 6
12B SWR-0500119 Valve Complete DBL-Angle O-Ring 6
12C SWR-050538 Valve Complete Standard Plate 6
13C SWR-0504890 Valve Insert Standard Plate 6
13B SWR-0515845 Valve Insert DBL-Angle O-Ring 6
13A 973 Valve Insert Full-Opening 6
13 – Valve Insert 6
14 – Valve Spring 6
14A 951 Valve Spring Full-Opening 6
14B SWR-0513744 Valve Spring DBL-Angle O-Ring 6
14C SWR-0515575 Valve Spring Standard Plate 6
15E 4467A Southwest HP Quick-Change Valve Cover Assembly –
15D HP-1700 Hydraulic Seat Puller Kit Complete –
15C SWR-0512436 Seat Standard Plate 6
15B SWR-0512436 Seat DBL-Angle O-Ring 6
15A 873-1 Seat Full-Opening 6
15 – Seat 6
16 4467 Threaded Flange 1
16A 1010628 Adapter Ring 1
17 4567 Screw Gland 1
18 4667A Plug (Complete With Valve Guide; Screws; and Bushing) 1
18A 1/4″-NPT Steel Pipe Plug (1/4″ NPT Forged Steel) 1
19 P-128 HP Valve Cover Plug Seal 1
20 4760-3R Valve Guide (Complete With Bushing #4700-I) 1
21 4700-I Valve Guide Bushing 1
22 4016-98 Valve Guide Screw 2
23 772610 Valve Cover Stud (With 1-3/8″ 6 Heavy Hex Nut) *Torque to 1775 FT.LBS. 12
24 4015-96 Power End Stud (With 1-1/2″-6 Heavy Hex Nut) *Torque to 2400 FT/LBS 24
25 772946 Liner Bushing Stud (With 1″-8 Heavy Hex Nut) *Torque to 650 FT.LBS. 18
26 80561092 Liner Bushing 3
27 80661092 Liner Clamp (With 3/4″-11 Grades 5 Bolt; Lock Nut and Washer) *Torque to 300 FT.LBS. 3
28 773221 Suction Module Stud (With 1-1/2″-8 Heavy Hex Nut) *Torque to 2775 FT.LBS. 18
29 4018-19 Suction Manifold Cap Screw (With Lock Washer) *Torque to 500 FT.LBS 24
30 80371092 Suction Manifold (Front or Side Outlet) 1
31 AJO-235 Suction Manifold Gasket 3
32 8467-52S Suction Module (Studded Only) 3
33 8467-51D Discharge Module (Studded Only) 3
34 2406341 Dowel Pin 6
34A – National “Wedge Lock” Valve Cover Assembly –
35 4016-34 Valve Cover Stud (With 1-3/8″-6 Heavy Hex Nut) *Torque to 1775 FT.LBS. 12
36 80803092 Valve Cover Flange (Threaded Ring) 1
37 80703092 Valve Cover 1
38 80871092 Wedge Adjusting Screw 1
39 80061003 Wedge Adjusting Nut 1
40 80513092 Wedge Adjusting Washer 1
41 80971092 Locking Wedge Assembly (Consisting of 6-Wegdes and 1-Spring) 1
42 80181092 Wedge Spring 1
43 80471092 Seal Retainer 1
44 AJO-250U Valve Cover Gasket (U=Urethane / R=Rubber) 1
45 80141292 Valve Guide Insert 1
46 80041292 Insert Holder 1
47 4018-18 Discharge Connector Cap Screw (With Lock Washer) 16
48 4018-27 Discharge Spacer Flange Socket Head Cap Screw *Torque to 1500 FT.LBS. 16
49 2362025 Discharge Connector 2
50 2362056 Discharge Adapter 2
51 2362084 Back-Up Ring 4
52 2362115 Discharge Spacer Flange 2
53 389775 Discharge Spacer Flange Seal 2
54 389716 Discharge Connector/ Adapter Packing 2
55 389747 Discharge Connector/ Adapter Packing 4
56 R-39-D Ring Gasket 2
57 4017-45 Discharge Spacer Flange Stud (With 1-1/4″-7 Heavy Hex Nut) *Torque to 1500 FT.LBS. 16
National Style 12-P-160 Fluid-End Assembly
Item # Part Number Description Approx. Weight (lbs) Qty Required
1 1376YXX Liner 3
2 2930-XX Liner Gasket 3
3 2398975 Liner Wearplate 3
4 376414 Wearplate and Module Gasket 6
5 XX-BYY Piston 3
6 568-225 Piston Seal 3
7 1286-32 Piston Rod (With Elastic Stop Nut) *Torque to 1000 FT.LBS. 3
8 API-4 ESN Piston Rod Nud 3
9 1286-1 Sub Rod 3
10C 4020-29 Bolt (5/8″ x 7″ Grade 8 Bolt With Lock Nut, and Washer) *Torque to 150 FT.LBS. 12
10B 1286CWYPF14 Pipe (3/8″ x 14″ Galvanized and Threaded on One End) 3
10A 1200H30 Hose (1/2″ x 30″ With 1/2″ Male x 3/8″ Male Connections) 3
10 1286-CWY Rod Clamp (With Water Jacket) 3
11 1200G86 Pony Rod 3
12 – Valve Complete 6
12A SWND-7-V2 Valve Complete Full Opening 6
12B SWR-0500110 Valve Complete DBL-Angle O-Ring 6
12C SWR-0505062 Valve Complete Standard Plate 6
13C SWR-0504893 Valve Insert Standard Plate 6
13B SWR-0514275 Valve Insert DBL-Angle O-Ring 6
13A – Valve Insert Full Opening 6
13 – Valve Insert 6
14 – Valve Spring 6
14A SW5710-115L Valve Spring Full Opening 6
14B SWR-0513744 Valve Spring DBL-Angle O-Ring 6
14C SWR-0513937 Valve Spring Standard Plate 6
15E 4476A Southwest HP Quick-Change Valve Cover Assembly –
15D HP-1700 Hydraulic Seat Puller Kit Complete –
15C SWR-0514299 Seat Spring Standard Plate 6
15B SWR-0514299 Seat DBL-Angle O-Ring 6
15A SWND-7-S12 Seat Full Opening 6
15 – Seat 6
16 4476 Threaded Flange 1
16A 1013915 Adapter Ring 1
17 4597 Screw Gland 1
18 4676A Plug (Complete With Valve Guide; Screws; and Bushing) 1
18A 1/4″- NPT Steel Pipe Plug (1/4″ NPT Forged Stel) 1
19 P-107 HP Valve Cover Plug Seal 1
20 4776R Valve Guide (Complete With Bushing #4700-I) 1
21 4700-I Valve Guide Bushing 1
22 4016-98 Valve Guide Screw 2
23 4015-54 Valve Cover Stud (With 1-1/2″ -6 Heavy Hex Nut) *Torque to 2400 FT.LBS. 12
24 4015-95 Power End Stud (With 1-3/8″ -6 Heavy Hex Nut) *Torque to 1775 FT.LBS. 24
25 4018-62 Liner Bushing Stud (With 1-1/8″ -7 Heavy Hex Nut) *Torque to 925 FT.LBS. 18
26 80561292 Liner Bushing 3
27 80661292 Liner Clamp (With 7/8″ -9 Grade 5 Bolt; Lock Nut and Washer) *Torque to 500 FT.LBS. 3
28 4018-17 Suction Module Stud (With 1-3/4″ -8 Heavy Hex Nut) *Torque to 3600 FT.LBS. 18
29 4018-19 Suction Manifold Cap Screw (With Lock Washer) *Torque to 500 FT.LBS. 24
30 80371292 Suction Manifold (Front or Side Outlet) 1
31 AJO-419R Suction Manifold Gasket 3
32 8476-52S Suction Module (Studded Only) 3
33 8476-51 D Discharge Module (Studded Only) 3
34 2406341 Dowel Pin 6
34A – National “Wedge Lock” Valve Cover Assembly –
35 4015-57 Valve Cover Stud (With 1-1/2″ -6 Heavy Hex Nut) *Torque to 2400 FT.LBS 12
36 80671292 Valve Cover Flange (Threaded Ring) 1
37 80271292 Valve Cover 1
38 80871292 Wedge Adjusting Screw 1
39 80281002 Wedge Adjusting Nut 1
40 80171292 Wedge Adjusting Washer 1
41 80971292 Locking Wedge Assembly (Consisting of 6-Wedges and 1-Spring) 1
42 80181292 Wedge Spring 1
43 80471292 Seal Retainer 1
44 AJO-258U Valve Cover Gasket (U=Urethane/ R= Rubber) 1
45 80141292 Valve Guide Insert 1
46 80041292 Insert Holder 1
47 4018-18 Discharge Connector Cap Screw (With Lock Washer) 16
48 4018-39 Discharge Spacer Flange Socket Head Cap Screw *Torque to 2600 FT.LBS. 16
49 2365312 Discharge Connector 2
50 2365343 Discharge Adapter 2
51 2365372 Back-Up Ring 4
52 2365403 Discharge Spacer Flange 2
53 393063 Discharge Spacer Flange Seal 2
54 393003 Discharge Connector/ Adapter Packing 2
55 393034 Discharge Connector / Adapter Packing 4
56 R-44-D Ring Gasket 2
57 4017-22 Discharge Spacer Flange Stud (With 1-1/2″- 6 Heavy Hex Nut) *Torque to 2600 FT.LBS. 16
National Style 14-P-220 Fluid-End Assembly
Item # Part Number Description Qty Required
4482-1A Southwest HP Quick-Change Valve Cover Assembly (Includes items 29 thru 37)
1 4020-21 Discharge Spacer Flange Stud 24
2 BX169 Ring Joint Gasket 2
3 395226 Discharge Connector/Adaptar Packing 4
4 395195 Discharge Connector/Adaptar Packing 2
5 395254 Discharge Spacer Flange Seal 2
6 2367594 Discharge Spacer Flange 2
7 2367563 Discharge Connector Back-Up Ring 2
8 2367535 Discharge Adapter 2
9 2367504 Discharge Conector 2
10 773311 Discharge Spacer Flange Capscrew 24
11 4018-18 Discharge Connector Capscrew 16
12 2406341 Dowel Pin 6
13 8482-51D Discharge Module 3
14 8482-52S Suction Module 3
15 AJO326 Suction Manifold Seal 3
16 8582 Suction Manifold 1
17 4018-19 Suction Manifold Capscrew 24
18 4019-80 Suction Module Stud 18
19 6582 Liner Clamp 3
20 4015-52 Liner Bushing Stud 18
21 6482 Liner Bushing 3
22 4019-24 Power End Stud 30
23 80141292 Valve Guide Insert 6
24 4782-50 Insert Holder 6
25 AJO213U Original Valve Cover Seal 6
26 Original Valve Cover Gland 6
27 4682-50 Original Seal Retainer 6
28 Original Valve Cover Flange 6
29 4015-54 Valve Cover Stud 84
30 4016-98 Valve Guide Capscrew 12
31 4700I Valve Guide Bushing 6
32 4776R Valve Guide 6
33 P121 HP Valve Cover Plug Nitrile Seal 6
34 1016138 Seal Adapter 6
35 4682-1A Plug 6
36 4582 Screw Gland 6
37 4482 Valve Cover Flange 6
38 Valve Seat 6
39 Valve Spring 6
40A Valve Insert 6
40 Valve 6
41 6200G82 Pony Rod 3
42C 4019-77 Bolt 12
42B 1200160 Dual Spray Pipe 6
42A 1200H30 Hose (1/2″ x 30″ with 1/2″ Male x 3/8″ Male Connections) 6
42 6282CWY Rod Clamp 6
43 1600495 Sub Rod 3
44 API-4ESN Piston Rod Nut 3
45 6282W32 Piston Rod 3
46 568-225 Piston O-Ring 3
47 XXB-YY Piston (Please Specify XX for Size and YY for type) 3
48 376445 Wearplate & Module Seal 6
49 2404119 Wearplate 3
50 2930-XX Liner Seal 3
51 6382-XX Liner (Please Specify Y for Type and XX for Bore Size) 3
National Style 8-P-80 Fluid-End Assembly
Item # Part Number Description Approx. Weight (lbs) Qty Required
1 1371YXX Liner 3
2 2971-XX Liner Gasket 3
3 2398609 Liner Wearplate 3
4 2988 Wearplate and Module Gasket 6
5 XX-BYY Piston 3
6 568-225 Piston Seal 3
7 6271-32 Piston Rod (With Elastic Stop Nut) *Torque to 1000 FT. LBS. 3
8 API-4 ESN Piston Rod Nut 3
9 1596477 Sub Rod 3
10C 4018-94 Bolt (5/8″ x 6″ Grade 8 Bolt With Lock Nut and Washer) *Torque to 150 FT.LBS. 12
10B 1200130 Pipe (3/8″ x 13″ Galvanized, and Threaded on One End) 3
10A 1200H30 Hose (1/2″ x 30″ with 1/2″ Male x 3/8″ Male Connections) 3
10 1271-CW Rod Clamp (With Water Jacket) 3
11 6200G71 Pony Rod 3
12 – Valve Complete 6
12A 773-1 Valve Complete Full-Opening 6
12B SWR-500119 Valve Complete DBL-Angle O-Ring 6
12C SWR-0505038 Valve Complete Standard Plate 6
13C SWR-0504890 Valve Insert Standard Plate 6
13B SWR-0515845 Valve Insert DBL-Angle O-Ring 6
13A 973 Valve Insert Full-Opening 6
13 – Valve Insert 6
14 – Valve Spring 6
14A 951 Valve Spring Full-Opening 6
14B SWR-0513744 Valve Spring DBL-Angle O-Ring 6
14C SWR-0515575 Valve Spring Standard Plate 6
15E 4467A Southwest HP Quick Change Valve Cover Assembly –
15D HP-1700 Hydraulic Seat Puller Kit Complete –
15C SWR-0512436 Standard Plate 6
15B SWR-0512436 DBL-Angle O-Ring Seat 6
15A 873-1 Full Opening Seat 6
15 – Seat 6
16 4467 Threaded Flange 1
16A 1010628 Adapter Ring 1
17 4567 Screw Gland 1
18 4667A Plug (Complete With Valve Guide; Screws; and Bushing) 1
18A 1/4″- NPT Steel Pipe Plug (1/4″ NPT Forged Steel) 1
19 P-128 HP Valve Cover Plug Seal 1
20 4760-3R Valve Guide (Complete With Bushing #4700-I) 1
21 4700-I Valve Guide Bushing 1
22 4016-98 Valve Guide Screw 2
23 772610 Valve Cover Stud (With 1-3/8″- 6 Heavy Hex Nut) *Torque to 1775 FT.LBS. 12
24 4018-47 Power End Stud (With 1-1/8″-7 Heavy Hex nut) *Torque to 925 FT.LBS 24
25 4017-48 Liner Bushing Stud (With 3/4″-10 Heavy Hex Nut) *Torque to 310 FT.LBS. 18
26 80561192 Liner Bushing 3
27 80661192 Liner Clamp (With 3/4″-11 Grade 5 Bolt; Lock Nut and Washer) *Torque to 300 FT.LBS 3
28 773221 Suction Module Stud (With 1-1/2″-8 Heavy Hex Nut) *Torque to 2775 FT.LBS 18
29 4018-19 Suction Manifold Cap Screw (With Lock Washer) *Torque to 500 FT.LBS. 24
30 80963192 Suction Manifold (Front or Side Outlet) 1
31 AJO-235 Suction Manifold Gasket 3
32 8471-52S Suction Module (Studded Only) 3
33 8471-53D Discharge Module (Studded Only) 3
34 2406341 Dowel Pin 6
34A – National “Wedge Lock” Valve Cover Assesmbly –
35 4016-34 Valve Cover Stud (With 1-3/8″- 6 Heavy Hex Nut) *Torque to 1775 FT.LBS. 12
36 80803092 Valve Cover Flange (Threaded Ring) 1
37 80703092 Valve Cover 1
38 80871092 Wedge Adjusting Screw 1
39 80061003 Wedge Adjusting Nut 1
40 80513092 Wedge Adjusting Washer 1
41 80971092 Locking Wedge Assembly (Consisting of 6-Wedges and 1-Spring) 1
42 80181092 Wedge Spring 1
43 80471092 Seal Retainer 1
44 AJO-250U Valve Cover Gasket (U= Urethane / R= Rubber) 1
45 80141292 Valve Guide Insert 1
46 80041292 Insert Holder 1
47 4018-18 Discharge Connector Cap Screw (With Lock Washer) 16
48 4018-27 Discharge Spacer Flange Socket Head Cap Screw *Torque to 1500 FT.LBS. 16
49 2362025 Discharge Connector 2
50 2362056 Discharge Adapter 2
51 2362084 Back-Up Ring 4
52 2362115 Discharge Spacer Flange 2
53 389775 Discharge Spacer Flange Seal 2
54 389716 Discharge Connector/Adapter Packing 2
55 389747 Discharge Connector/ Adapter Packing 4
56 R-39-D Ring Gasket 2
57 4017-45 Discharge Spacer Flange Stud (With 1-1/4″-7 Heavy Hex Nut) *Torque to 1500 FT.LBS. 16
National Style 9-P-100 Fluid-End Assembly
Item # Part Number Description Approx. Weight (lbs) Qty Required
1 1367YXX Liner 3
2 2930-XX Liner Gasket 3
3 2398609 Liner Wearplate 3
4 2988 Wearplate and Module Gasket 6
5 XX-BYY Piston 3
6 568-225 Piston Seal 3
7 1291-32 Piston Rod (With Elastic Stop Nut) *Torque to 1000 FT.LBS. 3
8 API-4 ESN Piston Rod Nut 3
9 1291-1 Sub Rod 3
10C 4018-94 Bolt (5/8″ x 6″ Grade 8 Bolt With Lock Nut and Washer) *Torque to 150 FT.LBS. 12
10B 1200130 Pipe (3/8″ x 13″ Galvanized, and Threaded on One End) 3
10A 1200H30 Hose (1/2″ x 30″ with 1/2″ Male x 3/8″ Male Connections) 3
10 1291-CW Rod Clamp (With Water Jacket) 3
11 1200G91 Pony Rod 3
12 – Valve Complete 6
12A 773-1 Valve Complete Full-Opening 6
12B SWR-0500119 Valve Complete DBL-Angle O Ring 6
12C SWR-0505038 Valve Complete Standard Plate 6
13C SWR-0504890 Valve Insert Standard Plate 6
13B SWR-0515845 Valve Insert DBL-Angle O Ring 6
13A 973 Valve Insert Full-Opening 6
13 – Valve Insert 6
14 – Valve Spring 6
14A 951 Valve Spring Full-Opening 6
14B SWR-0513744 Valve Spring DBL-Angle O Ring 6
14C SWR-0515575 Valve Spring Standard Plate 6
15E 4467A Southwest HP Quick-Change Valve Cover Assembly –
15D HP-1700 Hydraulic Seat Puller Kit Complete –
15C SWR-0512436 Standard Plate 6
15B SWR-0512436 DBL-Angle O-Ring Seat 6
15A 873-1 Full Opening Seat 6
15 – Seat 6
16 4467 Threaded Flange 1
16A 1010628 Adapter Ring 1
17 4567 Screw Gland 1
18 4667A Plug (Complete With Valve Guide; Screws; and Bushing) 1
18A – Steel Pipe Plug (1/4″ NPT) 1
19 P-128 HP Valve Cover Plug Seal 1
20 4760-3R Valve Guide (Complete with Bushing #4700-I) 1
21 4700-I Valve Guide Bushing 1
22 4016-98 Valve Guide Screw 2
23 772610 Valve Cover Stud (With 1-3/8″-6 Heavy Hex Nut) *Torque to 1775 FT.LBS. 12
24 4015-81 Power End Stud (With 1-1/4″-7 Heavy Hex Nut) *Torque to 1350 FT.LBS 24
25 772946 Liner Bushing Stud (With 1″-8 Heavy Hex Nut) *Torque to 650 FT.LBS 24
26 80561392 Liner Bushing 3
27 80661392 Liner Clamp (With 3/4″-11 Grade 5 Bolt; Lock Nut and Washer) *Torque to 300 FT.LBS. 3
28 773221 Suction Module Stud (With 1-1/2″-8 Heavy Hex Nut) *Torque to 2775 FT.LBS. 18
29 4018-19 Suction Manifold Cap Srew (With Lock Washer) *Torque to 500 FT.LBS 24
30 80371392 Suction Manifold (Front or Side Outlet) 1
31 AJO-235 Suction Manifold Gasket 3
32 8467-52S Suction Module (Studded Only) 3
33 8495-51D Discharge Module (Studded Only) 3
34 2406341 Dowel Pin 6
34A – National “Wedge Lock” Valve Cover Assembly –
35 4016-34 Valve Cover Stud (With 1-3/8″-6 Heavy Hex Nut) *Torque to 1775 FT.LBS. 12
36 80803092 Valve Cover Flange (Threaded Ring) 1
37 80703092 Valve Cover 1
38 80871092 Wedge Adjusting Screw 1
39 80061003 Wedge Adjusting Nut 1
40 80513092 Wedge Adjusting Washer 1
41 80971092 Locking Wedge Assembly (Consisting of 6-Wedges and 1-Spring) 1
42 80181092 Wedge Spring 1
43 80471092 Seal Retainer 1
44 AJO-250U Valve Cover Gasket (U= Urethane/ R= Rubber) 1
45 80141292 Valve Guide Insert 1
46 80041292 Insert Holder 1
47 4018-18 Discharge Connector Cap Screw (With Lock Washer) 16
48 4018-27 Discharge Spacer Allen Head Cap Screw *Torque to 1500 FT.LBS. 16
49 2362025 Discharge Connector 2
50 2362056 Discharge Adapter 2
51 2362084 Back-Up Ring 4
52 2362115 Discharge Spacer Flange 2
53 389775 Discharge Spacer Flange Seal 2
54 389716 Discharge Connector/ Adapter Packing 2
55 389747 Discharge Connector/ Adapter Packing 4
56 R-39-D Ring Gasket 2
57 4017-45 Discharge Spacer Flange Stud (With 1-1/4″-7 Heavy Hex Nut) *Torque to 1500 FT.LBS. 16