NATIONAL JWS-165 | 4-1/2 x5

VALVES, SEATS, SPRINGS LINER GASKETS PISTONS JD-CB PISTON RUBBERS
SIZE PART NUMBER PART NUMBER URETHANE BONDED RUBBER BONDED REPLACE RUBBER PART NUMBER
4" BL-0146-40HP G-281 BL-U-40-K10 BL-40-K10 BL-I-40-K10 BL-40-KR
4 1/2" BL-0146-44HP G-281 BL-U-44-B10 BL-44-B10 BL-I-44-B10 BL-44-BR
5" BL-0146-50HP G-281 BL-U-50-B10 BL-50-B10 BL-I-50-B10 BL-50-BR
5 1/2" BL-0146-54HP G-281 BL-U-54-B10 BL-54-B10 BL-I-54-B10 BL-54-BR
5 3/4" BL-0146-56HP G-281 BL-U-56-B10 BL-56-B10 BL-I-56-B10 BL-56-BR
6" BL-0146-60HP G-281 BL-U-60-B10 BL-60-B10 BL-I-60-B10 BL-60-BR
6 1/4" BL-0146-62HP G-281 BL-U-62-L10 BL-62-L10 BL-I-62-L10 BL-62-LR
6 1/2" BL-0146-64HP G-281 BL-U-64-L10 BL-64-L10 BL-I-64-L10 BL-64-LR
6 3/4" BL-0146-66Cr G-281 BL-U-66-L10 BL-66-L10 BL-I-66-L10 BL-66-LR

VALVES, SEATS, SPRINGS GASKETS
4 WEB DESIGN 3 WEB DESIGN FULL OPEN (1) FULL OPEN (2) PART NUMBER
VALVE BL-5-M5B5 - - BL-5-V1 VALVE COVER GASKET G-733
SEAT BL-5-M5B5 - - BL-5-S1 CYLINDER HEAD GASKET G-281
SPRING BL-5710-111 - - BL-570-111 WEAR PLATE GASKET N/A
INSERT (Urethane) BL-5-WI - - BL-5-F1 EXTENSION ROD SEAL -
INSERT (Rubber" - - - - EXTENSION ROD BAFFLE -

VALVES, SEATS, SPRINGS
ROD CLAMP PISTON ROD STUD PISTON NUT THREADED TYPE PISTON ROD CLAMP TYPE PISTON ROD SUB ROD CLAMP TYPE EXTENSION ROD
BLF05-03-08 N/A BL-NUT N/A BL-147 N/A BLF05-01-06

FLUID END MODULE
FLUID END MODULE ODULE SEAL SET STUDS & NUTS SET
BL-6318-0151-00 BLF05-Sealkit BLF05-Studsse

NATIONAL JWS-400 | 6x8-1/2

LINERS LINER GASKETS PISTONS PISTON RUBBERS
6 3/4" BL-0146-66Cr BL-G-281 BL-U-66-L10 BL-66-L10 BL-I-66-L10 BL-66-LR
SIZE PART NUMBER PART NUMBER URETHANE BONDED RUBBER BONDED REPLACE RUBBER PART NUMBER
4" BL-0146-40HP BL-G-281 BL-U-40-K10 BL-40-K10 BL-I-40-K10 BL-40-KR
4 1/2" BL-0146-44HP BL-G-281 BL-U-44-B10 BL-44-B10 BL-I-44-B10 BL-44-BR
5" BL-0146-50HP BL-G-281 BL-U-50-B10 BL-50-B10 BL-I-50-B10 BL-50-BR
5 1/2" BL-0146-54HP BL-G-281 BL-U-54-B10 BL-54-B10 BL-I-54-B10 BL-54-BR
5 3/4" BL-0146-56HP BL-G-281 BL-U-56-B10 BL-56-B10 BL-I-56-B10 BL-56-BR
6" BL-0146-60HP BL-G-281 BL-U-60-B10 BL-60-B10 BL-I-60-B10 BL-60-BR
6 1/4" BL-0146-62HP BL-G-281 BL-U-62-B-10 BL-62-L10 BL-I-62-L10 BL-62-LR
6 1/2" BL-0146-64HP BL-G-281 BL-U-64-L10 BL-64-L10 BL-I-64-L10 BL-64-LR

VALVES, SEATS, SPRINGS GASKETS
INSERT (Rubber) - - - - EXTENSION ROD BAFFLE -
4 WEB DESIGN 3 WEB DESIGN FULL OPEN (1) FULL OPEN (2) PART NUMBER
VALVE BL-0146-40HP - - BL-40-K10 BL-I-40-K10 BL-40-KR
SEAT BL-5-DDB1 - - BL-5-S1 CYLINDER HEAD GASKET G-281
SPRING BL-5710-111 - - BL-570-111 WEAR PLATE GASKET N/A
INSERT (Urethane) BL-5-WI - - BL-5-F1 EXTENSION ROD SEAL -

PISTON ROD & EXTENSION ROD
APF05-03-08 N/A AP-NUT N/A AP-146 N/A APF05-01-06
ROD CLAMP PISTON ROD STUD PISTON NUT THREADED TYPE PISTON ROD CLAMP TYPE PISTON ROD SUB ROD CLAMP TYPE EXTENSION ROD

FLUID END MODULE
AP-6318-0151-00 APF05-Sealkit APF05-Studsset
FLUID END MODULE MODULE SEAL SET STUDS & NUTS SET

NATIONAL 7-P-50 | 6-1/4 x7

LINERS LINER GASKETS PISTONS PISTON RUBBERS
6 3/4" BL-0146-66Cr BL-G-281 BL-U-66-L15 BL-66-L15 BL-I-66-L15 BL-66-LR
4" BL-0146-40HP BL-G-281 BL-U-40-K10 BL-40-K10 BL-I-40-K10 BL-40-KR
4 1/2" BL-0146-44HP BL-G-281 BL-U-44-B10 BL-44-B10 BL-I-44-B10 BL-44-BR
5" BL-0146-50HP BL-G-281 BL-U-50-B10 BL-50-B10 BL-I-50-B10 BL-50-BR
5 1/2" BL-0146-54HP BL-G-281 BL-U-54-B10 BL-54-B10 BL-I-54-B10 BL-54-BR
5 1/2" BL-0146-56HP BL-G-281 BL-U-56-B10 BL-56-B10 BL-I-56-B10 BL-56-BR
6" BL-0146-60Hp BL-G-281 BL-U-60-B10 BL-60-B10 BL-I-60-B10 BL-60-BR
6 1/4" BL-0146-62HP BL-G-281 BL-U-62-L15 BL-62L15 BL-I-62-L15 BL-64-LR
6 1/2" BL-0146-64HP BL-G-281 BL-U-64-L10 BL-64-L10 BL-I-64-L10 BL-66-LR

VALVES, SEATS, SPRINGS GASKETS
INSERT (Rubber) - - - - EXTENSION ROD BAFFLE -
4 WEB DESIGN 3 WEB DESIGN FULL OPEN (1) FULL OPEN (2) PART NUMBER
VALVEBL-5-M5B5 - - BL-5-V1 VALVE COVER GASKET G-733
SEATBL-5-DDB1 - - BL-5-S1 CYLINDER HEAD GASKET G-281
SPRINGBL-5710-111--BL-570-111WEAR PLATE GASKETN/A
INSERT (Urethane) BL-5-WI - - BL-5-F1 EXTENSION ROD SEAL -

PISTON ROD & EXTENSION ROD
BLF65-03-08N/A BL-NUT N/A BL-146 N/A BLF65-01-06
ROD CLAMP PISTON ROD STUD PISTON NUT THREADED TYPE PISTON ROD CLAMP TYPE PISTON ROD SUB ROD CLAMP TYPE EXTENSION ROD

FLUID END MODULE
FLUID END MODULE MsODULE SEAL SET STUDS & NUTS SET
BL-6318-0151-00 BLF05-Sealkit BLF05-Studsse

NATIONAL 8-P-80 | 6-1/2 x 8-1/2

LINERS LINER GASKETS PISTONS PISTON RUBBERS
7" BL-0148-70Cr BL-G-282 BL-U-70-L15 BL-70-L15 BL-I-70-L15 BL-70-LR
SIZE PART NUMBER PART NUMBER URETHANE BONDED RUBBER BONDED REPLACE RUBBER PART NUMBER
4" BL-0148-40HPBL-G-282BL-U-40-K15BL-40-K10BL-I-40-K15BL-40-KR
4 1/2" BL-0148-44HPBL-G-282BL-U-44-B15BL-44-B10BL-I-44-B15BL-44-BR
5" BL-0148-50HPBL-G-282BL-U-50-B15BL-50-B10BL-I-50-B15BL-50-BR
5 1/2" BL-0148-54HPBL-G-282BL-U-54-B15BL-54-B10BL-I-54-B15BL-54-BR
5 3/4" BL-0148-56HPBL-G-282BL-U-56-B15BL-56-B15BLI-56-B15BL-56-BR
6" BL-0148-60HPBL-G-282BL-U-60-B15BL-60-B10BL-I-60-B15BL-60-BR
6 1/4" BL-0148-62HPBL-G-282BL-U-62-L15BL-62-L15BL-I-62-L15BL-62-LR
6 1/2" BL-0148-64HPBL-G-282BL-U-64-L15BL-64-L10BL-I-64-L15BL-64-LR
6 3/4" BL-0148-66HPBL-G-282BL-U-66-L15BL-66-L15BL-I-66-L15BL-66-LR

VALVES, SEATS, SPRINGS GASKETS
INSERT (Rubber) BL-6-WR--BL-6-FREXTENSION ROD BAFFLEBL-720-8500
4 WEB DESIGN 3 WEB DESIGN FULL OPEN (1) FULL OPEN (2) PART NUMBER
VALVE BL-6-EH - BL-0995M BL-6-V1 VALVE COVER GASKET G-740
SEAT BL-6-ADDB6 - BL-1380M BL-6-S6 CYLINDER HEAD GASKET G-282
SPRING BL-5710-115 - - BL-5710-115 WEAR PLATE GASKET N/A
INSERT (Urethane) BL-6-WI - BL-6-MI BL-6-F1 EXTENSION ROD SEAL BL-720-9106

PISTON ROD & EXTENSION ROD
BL-F08-03-08 N/A BL-NUT N/A BL-150 N/A BL-F08-01-06
ROD CLAMP PISTON ROD STUD PISTON NUT THREADED TYPE PISTON ROD CLAMP TYPE PISTON ROD SUB ROD CLAMP TYPE EXTENSION ROD

FLUID END MODULE
BL-0-6999-0086-02 BL-F08-Sealkit BL-F08-Studsset
FLUID END MODULE MODULE SEAL SET STUDS & NUTS SET

NATIONAL 9-P-100 | 6 3/4 x9

LINERS LINER GASKETS PISTONS PISTON RUBBERS
4" BL-0148-40HP BL-G-282 BL-U-40-K15 BL-40-K15 BL-I-40-K15 BL-40-KR
4 1/2" BL-0148-44HP BL-G-282 BL-U-44-B15 BL-44-B15 BL-I-44-B15 BL-44-BR
5" BL-0148-50HP BL-G-282 BL-U-50-B15 BL-50-B15 BL-I-50-B15 BL-50-BR
5 1/2" BL-0148-54HP BL-G-282 BL-U-54-B15 BL-54-B15 BL-I-54-B15 BL-54-BR
5 3/4" BL-0148-56HP BL-G-282 BL-U-56-B15 BL-56-B15 BL-I-56-B15 BL-56-BR
6" BL-0148-60HP BL-G-282 BL-U-60-B15 BL-60-B15 BL-I-60-B15 BL-60-BR
6 1/4" BL-0148-62HP BL-G-282 BL-U-62-L15 BL-62-L15 BL-I-62-L15 BL-62-LR
6 1/2" BL-0148-64HP BL-G-282 BL-U-64-L15 BL-64-L15 BL-I-64-L15 BL-64-LR
6 3/4" BL-0148-66HP BL-G-282 BL-U-66-L15 BL-66-L15 BL-I-66-L15 BL-66-LR
7" BL-0148-70Cr BL-G-282 BL-U-70-L15 BL-70-L15 BL-I-70-L15 BL-70-LR

VALVES, SEATS, SPRINGS GASKETS
4 WEB DESIGN 3 WEB DESIGN FULL OPEN (1) FULL OPEN (2) PART NUMBER
VALVE BL-6-EH - BL-0995M BL-6-V1 VALVE COVER GASKET G-740
SEAT BL-6-ADDB6 - BL-1380M BL-6-S6 CYLINDER HEAD GASKET G-282
SPRING BL-5710-115 - - BL-5710-115 WEAR PLATE GASKET N/A
INSERT (Urethane) BL-6-WI - BL-6-MI BL-6-F1 EXTENSION ROD SEAL BL-720-9107
INSERT (Rubber) BL-6-WR - - BL-6-FR EXTENSION ROD BAFFLE BL-720-8501

PISTON ROD & EXTENSION ROD
ROD CLAMP PISTON ROD STUD PISTON NUT THREADED TYPE PISTON ROD CLAMP TYPE PISTON ROD SUB ROD CLAMP TYPE EXTENSION ROD
BL-F10-03-08 N/A BL-NUT N/A BL-148 N/A BL-F10-01-06

FLUID END MODULE
FLUID END MODULE ODULE SEAL SET STUDS & NUTS SET
BL-0-6999-0086-02 BL-F08-Sealkit BL-F08-Studsset

NATIONAL 10-P-130 | 6-3/4 x 10

LINERS LINER GASKETS PISTONS PISTON RUBBERS
SIZE PART NUMBER PART NUMBER URETHANE BONDED RUBBER BONDED REPLACE RUBBER PART NUMBER
4" BL-2145-40HP BL-G-800 BL-U-40-K15 BL-40-K15 BL-I-40-K15 BL-40-KR
4 1/2" BL-2145-44HP BL-G-800 BL-U-44-B15 BL-44-B15 BL-I-44-B15 BL-44-BR
5" BL-2145-50HP BL-G-800 BL-U-50-B15 BL-50-B15 BL-I-50-B15 BL-50-BR
5 1/2" BL-2145-54HP BL-G-800 BL-U-54-B15 BL-54-B15 BL-I-54-B15 BL-54-BR
5 3/4" BL-2145-56HP BL-G-800 BL-U-56-B15 BL-56-B15 BL-I-56-B15 BL-56-BR
6" BL-2145-56HP BL-G-800 BL-U-60-B15 BL-60-B15 BL-I-60-B15 BL-60-BR
6 1/4" BL-2145-60HP BL-G-800 BLU-62-L15 BL-62-L15 BL-I-62-B15 BL-62-LR
6 1/2" BL-2145-64HP BL-G-800 BL-U-64-L15 BL-64-L15 BL-I-64-L15 BL-64-LR
6 3/4" BL-2145-66HP BL-G-800 BL-U-66-L15 BL-66-L15 BL-I-66-L15 BL-66-LR
7" BL-2145-70HP BL-G-800 BL-U-70-L15 BL-70-L15 BL-I-70-L15 BL-70-LR

VALVES, SEATS, SPRINGS GASKETS
4 WEB DESIGN 3 WEB DESIGN FULL OPEN (1) FULL OPEN (2) PART NUMBER
VALVE BL-7-EEFBL--202482BL-0985MBL-7-V1VALVE COVER GASKETG-741
SEAT BL-7-DDB1BL-202039BL-1370MBL-7-S1CYLINDER HEAD GASKETG-801
SPRING BL-5710-115--BL-5710-115LWEAR PLATE GASKETG-800
INSERT (Urethane) BL-7-WIBL-201106BL-7-MIBL-7-F1EXTENSION ROD SEALBL-720-9110
INSERT (Rubber) BL-7-WRBL-201107--EXTENSION ROD BAFFLEBL-720-8502

PISTON ROD & EXTENSION ROD
ROD CLAMP PISTON ROD STUD PISTON NUT THREADED TYPE PISTON ROD CLAMP TYPE PISTON ROD SUB ROD CLAMP TYPE EXTENSION ROD
BL-FB6-03-08 N/A BL-NUT N/A BL-2145 N/A BL-FB6-01-06

FLUID END MODULE
FLUID END MODULE ODULE SEAL SET STUDS & NUTS SET
BL-0-6316-0357-00 BL-FB6-Sealkit BL-FB6-Studsset

NATIONAL 12-P-160 | 7-1/2 x 12

LINERS LINER GASKETS PISTONS PISTON RUBBERS
SIZE PART NUMBER PART NUMBER URETHANE BONDED RUBBER BONDED REPLACE RUBBER PART NUMBER
4" BL-2145-40HPBL-G-800BL-U-40-K15BL-40-K15BL-I-40-K15BL-40-KR
4 1/2" BL-2145-44HPBL-G-800BL-U-44-B15BL-44-B15BL-I-44-B15BL-44-BR
5" BL-2145-50HPBL-G-800BL-U-50-B15BL-50-B15BL-I-50-B15BL-50-BR
5 1/2" BL-2145-54HPBL-G-800BL-U-54-B15BL-54-B15BL-I-54-B15BL-54-BR
5 3/4" BL-2145-56HPBL-G-800BL-U-56-B15BL-56-B15BL-I-56-B15BL-56-BR
6" BL-2145-60HPBL-G-800BL-U-60-B15BL-60-B15BL-I-60-B15BL-60-BR
6 1/4" BL-2145-62HPBL-G-800BL-U-62-L15BL-62-L15BL-I-62-L15BL-62-LR
6 1/2" BL-0146-64HP G-281 BL-U-64-L10 BL-64-L10 BL-I-64-L10 BL-64-LR
6 3/4" BL-2145-66HPBL-G-800BL-U-66-L15BL-66-L15BL-I-66-L15BL-66-LR
7" BL-2145-70HPBL-G-800BL-U-70-L15BL-70-L15BL-I-70-L15BL-70-LR

VALVES, SEATS, SPRINGS GASKETS
4 WEB DESIGN 3 WEB DESIGN FULL OPEN (1) FULL OPEN (2) PART NUMBER
VALVE BL-7-EEF BL-202482 BL-0985M BL-7-V1 VALVE COVER GASKET G-741
SEAT BL-7-DDB1 BL-202039 BL-1370M BL-7-S1 CYLINDER HEAD GASKET G-801
SPRING BL-5710-115 - - BL-5710-115L WEAR PLATE GASKET G-800
INSERT (Urethane) BL-7-WI BL-201106 BL-7-MI BL-7-F1 EXTENSION ROD SEAL BL-720-9110
INSERT (Rubber) BL-7-WR BL-201107 - - EXTENSION ROD BAFFLE BL-720-8502

PISTON ROD & EXTENSION ROD
ROD CLAMP PISTON ROD STUD PISTON NUT THREADED TYPE PISTON ROD CLAMP TYPE PISTON ROD SUB ROD CLAMP TYPE EXTENSION ROD
BL-F10-03-08 N/A BL-NUT N/A BL-2145 N/A BL-FB6-01-06

FLUID END MODULE
FLUID END MODULE ODULE SEAL SET STUDS & NUTS SET
BL-0-6316-0357-00 BL-FB6-Sealkit BL-FB6-Studsset