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R657 PIECE 8 — HEAD,HYDRAULIC MOTOR-PUMP

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

R657 PIECE 8: HEAD,HYDRAULIC MOTOR-PUMP.

The HEAD,HYDRAULIC MOTOR-PUMP is a the manufacturer industrial component. Key specifications include material: IRON CAST, end_item_identification: PUMP,WARREN PUMP CO,MODEL 1-1/2-2CV-6. This part is cataloged in the U.S.

Government catalog under NSN 4320-01-185-6754, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
R657 PIECE 8
NSN: 4320-01-185-6754
FSC: 4320 — Power and Hand Pumps
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialIRON CAST
end_item_identificationPUMP,WARREN PUMP CO,MODEL 1-1/2-2CV-6
NSN4320-01-185-6754
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available HEAD,HYDRAULIC MOTOR-PUMP TITLE COMPONENT PN R657 PIECE 8 MFR HEAD,HYDRAULIC MOTOR-P
KEY FEATURES
•
MATERIAL: IRON CAST
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONPUMP,WARREN PUMP CO,MODEL 1-1/2-2CV-6
MATERIALIRON CAST
SUBSTITUTES & CROSS-REFERENCES 1
R-657Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is R657 PIECE 8?
R657 PIECE 8 is a HEAD,HYDRAULIC MOTOR-PUMP.
What parts can replace R657 PIECE 8?
There is 1 known substitute for R657 PIECE 8: R-657. Substitute compatibility should be verified for your specific system.
What is the NSN for R657 PIECE 8?
R657 PIECE 8 is cataloged in the U.S. Government catalog under NSN 4320-01-185-6754. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.