PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 012-1003-00
012-1003-00 ✓ 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

The LOCK SPRING,TURNLOCK FASTENER is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-823-5639, 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
012-1003-00
NSN: 5325-00-823-5639
FSC: 5325
CAGE: 72794 — SOUTHCO INC (USA)
SPECIFICATIONS
Part Number012-1003-00
NSN5325-00-823-5639
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 012-1003-00 · 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 12
C422Interchangeable
interchangeable cross-reference
interchangeable
4-27321CInterchangeable
interchangeable cross-reference
interchangeable
28C800-013Interchangeable
interchangeable cross-reference
interchangeable
S3-175CADPLInterchangeable
Same NIIN cross-reference
interchangeable
S3-175CInterchangeable
Same NIIN cross-reference
interchangeable
S3-175 CIYInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 012-1003-00?
012-1003-00 is a LOCK SPRING,TURNLOCK FASTENER.
What parts can replace 012-1003-00?
There are 12 known substitutes for 012-1003-00: C422, 4-27321C, 28C800-013 and 9 more. Substitute compatibility should be verified for your specific system.
Is 012-1003-00 still available?
012-1003-00 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