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2DR645 — LOCK,VALVE SPRING RETAINER

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

2DR645: LOCK,VALVE SPRING RETAINER.

The LOCK,VALVE SPRING RETAINER is a the manufacturer industrial component. Key specifications include style_designator: STRAIGHT BORE, thread_provision: UNTHREADED. This part is cataloged in the U.S.

Government catalog under NSN 2815-01-271-7171, 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
2DR645
NSN: 2815-01-271-7171
FSC: 2815 — Diesel Engines and Components
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
style_designatorSTRAIGHT BORE
thread_provisionUNTHREADED
NSN2815-01-271-7171
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available LOCK,VALVE SPRING RETAINER TITLE COMPONENT PN 2DR645 MFR LOCK,VALVE SPRING RETA
KEY FEATURES
•
THREAD PROVISION: UNTHREADED
•
STYLE DESIGNATOR: STRAIGHT BORE
TECHNICAL CHARACTERISTICS
THREAD PROVISIONUNTHREADED
STYLE DESIGNATORSTRAIGHT BORE
SUBSTITUTES & CROSS-REFERENCES 3
3901177Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
J90117-7Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
032745TReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2DR645?
2DR645 is a LOCK,VALVE SPRING RETAINER.
What parts can replace 2DR645?
There are 3 known substitutes for 2DR645: 3901177, J90117-7, 032745T. Substitute compatibility should be verified for your specific system.
What is the NSN for 2DR645?
2DR645 is cataloged in the U.S. Government catalog under NSN 2815-01-271-7171. 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.