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Technical Data Sheet
PartsTable / COMPONENT / NAS669-50
NAS669-50 ✓ 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 5325-00-804-9743, 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
NAS669-50
NSN: 5325-00-804-9743
FSC: 5325
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
Part NumberNAS669-50
NSN5325-00-804-9743
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: NAS669-50 · 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 35
A8241-063-82340-207Interchangeable
interchangeable cross-reference
interchangeable
190186Interchangeable
interchangeable cross-reference
interchangeable
DLT607781Interchangeable
interchangeable cross-reference
interchangeable
AN6227B8Interchangeable
interchangeable cross-reference
interchangeable
N0304 2-110Interchangeable
interchangeable cross-reference
interchangeable
250S8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAS669-50?
NAS669-50 is a RING,RETAINING.
What parts can replace NAS669-50?
There are 35 known substitutes for NAS669-50: A8241-063-82340-207, 190186, DLT607781 and 32 more. Substitute compatibility should be verified for your specific system.
Is NAS669-50 still available?
NAS669-50 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