91251A404 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

91251A404: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include thread_class: 2A A, fastener_length: 2.500 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, end_item_identification: NSN 2330-01-303-8832 M1000 SEMITRAILER, nominal_thread_diameter: 0.625 INCHES IN, thread_quantity_per_inch: 18. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-383-8917, 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

91251A404

NSN: 5305-01-383-8917
FSC: 5305 — Screws
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)

SPECIFICATIONS

thread_class	2A A
fastener_length	2.500 INCHES NOMINAL IN
thread_direction	RIGHT-HAND
end_item_identification	NSN 2330-01-303-8832 M1000 SEMITRAILER
nominal_thread_diameter	0.625 INCHES IN
thread_quantity_per_inch	18
thread_series_designator	UNF
NSN	5305-01-383-8917

COMPONENT DIAGRAM

KEY FEATURES

•

FASTENER LENGTH: 2.500 INCHES NOMINAL IN

•

NOMINAL THREAD DIAMETER: 0.625 INCHES IN

•

THREAD DIRECTION: RIGHT-HAND

•

THREAD CLASS: 2A A

•

THREAD QUANTITY PER INCH: 18

•

THREAD SERIES DESIGNATOR: UNF

TECHNICAL CHARACTERISTICS

FASTENER LENGTH	2.500 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER	0.625 INCHES IN
THREAD DIRECTION	RIGHT-HAND
THREAD CLASS	2A A
END ITEM IDENTIFICATION	NSN 2330-01-303-8832 M1000 SEMITRAILER
THREAD QUANTITY PER INCH	18
THREAD SERIES DESIGNATOR	UNF

OTHER ITEMS IN FSC 5305 — Screws

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753

SUBSTITUTES & CROSS-REFERENCES 2

91252A804Reference document

Same NSN cross-reference

Reference document — Secondary reference

SW33984-3Reference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 91251A404?

91251A404 is a SCREW,CAP,SOCKET HEAD.

What parts can replace 91251A404?

There are 2 known substitutes for 91251A404: 91252A804, SW33984-3. Substitute compatibility should be verified for your specific system.

What is the NSN for 91251A404?

91251A404 is cataloged in the U.S. Government catalog under NSN 5305-01-383-8917. This indicates validated use in U.S. government and defense supply chains.

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91251A404 — SCREW,CAP,SOCKET HEAD

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