PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 3503-C3Y
3503-C3Y ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

RETAINER,TURNLOCK FASTENER EJECT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-989-6033, 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
3503-C3Y
NSN: 5325-00-989-6033
FSC: 5325
CAGE: 72794 — SOUTHCO INC (USA)
SPECIFICATIONS
Part Number3503-C3Y
NSN5325-00-989-6033
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3503-C3Y · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
944.48.83.065Interchangeable
interchangeable cross-reference
interchangeable
1JA2721H03Interchangeable
interchangeable cross-reference
interchangeable
2144116-1Interchangeable
interchangeable cross-reference
interchangeable
MS25010Interchangeable
interchangeable cross-reference
interchangeable
270-1930-0111-702Interchangeable
interchangeable cross-reference
interchangeable
270-1930-011-70 2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3503-C3Y?
3503-C3Y is a RETAINER,TURNLOCK FASTENER EJECT.
What parts can replace 3503-C3Y?
There are 23 known substitutes for 3503-C3Y: 944.48.83.065, 1JA2721H03, 2144116-1 and 20 more. Substitute compatibility should be verified for your specific system.
Is 3503-C3Y still available?
3503-C3Y is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026