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501901 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

501901: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5325-01-297-3032, 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
501901
NSN: 5325-01-297-3032
FSC: 5325 — Fastening Devices
CAGE: 32862 — SHIPS MACHINERY INTERNATIONAL, INC. (USA)
SPECIFICATIONS
Part Number501901
NSN5325-01-297-3032
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 501901 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 2
200157 ITEM 8Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
300335Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 501901?
501901 is a RING,RETAINING.
What parts can replace 501901?
There are 2 known substitutes for 501901: 200157 ITEM 8, 300335. Substitute compatibility should be verified for your specific system.
What is the NSN for 501901?
501901 is cataloged in the U.S. Government catalog under NSN 5325-01-297-3032. This indicates validated use in U.S. government and defense supply chains.
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