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Technical Data Sheet
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4128-0003 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

4128-0003: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5325-00-089-9303, 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
4128-0003
NSN: 5325-00-089-9303
FSC: 5325 — Fastening Devices
CAGE: 17671 — TELEVISONET, INC. (USA)
SPECIFICATIONS
Part Number4128-0003
NSN5325-00-089-9303
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4128-0003 · 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 6
5325PL0917204Reference document
Same NSN cross-reference
Reference document — Informative reference only
GR540V1Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
1107425620800Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
2951023Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
578R709H02Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
5325PL2156775Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4128-0003?
4128-0003 is a RING,RETAINING.
What parts can replace 4128-0003?
There are 6 known substitutes for 4128-0003: 5325PL0917204, GR540V1, 1107425620800 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4128-0003?
4128-0003 is cataloged in the U.S. Government catalog under NSN 5325-00-089-9303. 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.