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Technical Data Sheet
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90623-991 — SCREW,TAPPING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

90623-991: SCREW,TAPPING.

The SCREW,TAPPING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5305-01-173-0123, 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
90623-991
NSN: 5305-01-173-0123
NIINs: 011730123, 012167338
FSC: 5305 — Screws
CAGE: 0BAT5 — U.S. DEFENSE SERVICES, INC. DBA USDS (USA)
SPECIFICATIONS
Part Number90623-991
NSN5305-01-173-0123
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 90623-991 · 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 1
21242126-419Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 90623-991?
90623-991 is a SCREW,TAPPING.
What parts can replace 90623-991?
There is 1 known substitute for 90623-991: 21242126-419. Substitute compatibility should be verified for your specific system.
What is the NSN for 90623-991?
90623-991 is cataloged in the U.S. Government catalog under NSN 5305-01-173-0123. This indicates validated use in U.S. government and defense supply chains.
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