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Technical Data Sheet
PartsTable / COMPONENT / H15-0018-121
H15-0018-121 ✓ 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 RING,RETAINING is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-230-9917, 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
H15-0018-121
NSN: 5325-01-230-9917
FSC: 5325
CAGE: 14304 — L3HARRIS TECHNOLOGIES, INC. DBA HARRIS CORP DIV HARRIS DEFENSE COMMUNICATIONS (USA)
SPECIFICATIONS
Part NumberH15-0018-121
NSN5325-01-230-9917
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: H15-0018-121 · 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 11
4156-3Interchangeable
interchangeable cross-reference
interchangeable
AFS1KDD7Interchangeable
interchangeable cross-reference
interchangeable
60781-1Interchangeable
interchangeable cross-reference
interchangeable
4WSPInterchangeable
interchangeable cross-reference
interchangeable
4SSInterchangeable
interchangeable cross-reference
interchangeable
SR4SSInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H15-0018-121?
H15-0018-121 is a RING,RETAINING.
What parts can replace H15-0018-121?
There are 11 known substitutes for H15-0018-121: 4156-3, AFS1KDD7, 60781-1 and 8 more. Substitute compatibility should be verified for your specific system.
Is H15-0018-121 still available?
H15-0018-121 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