91255A537 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

91255A537: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include head_style: ROUND, head_height: 0.122 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.419 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN, thread_length: 0.370 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN, fastener_length: 0.470 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-254-0850, 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

91255A537

NSN: 5305-01-254-0850
FSC: 5305 — Screws
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)

SPECIFICATIONS

head_style	ROUND
head_height	0.122 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN
thread_class	2A A
head_diameter	0.419 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
thread_length	0.370 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
fastener_length	0.470 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
hardness_rating	36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
special_features	FINISH COLOR BLACK
thread_direction	RIGHT-HAND
surface_treatment	OXIDE OVERALL
width_across_flats	0.156 INCHES NOMINAL IN
internal_drive_style	HEXAGON
NSN	5305-01-254-0850

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.156 INCHES NOMINAL IN

•

HEAD HEIGHT: 0.122 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN

•

FASTENER LENGTH: 0.470 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN

•

THREAD LENGTH: 0.370 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN

•

HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

HEAD STYLE: ROUND

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.156 INCHES NOMINAL IN
HEAD HEIGHT	0.122 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN
FASTENER LENGTH	0.470 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
THREAD LENGTH	0.370 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES IN
HEAD STYLE	ROUND
THREAD DIRECTION	RIGHT-HAND
SPECIAL FEATURES	FINISH COLOR BLACK
SURFACE TREATMENT	OXIDE OVERALL

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

T107262Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

391 1401 302Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

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 91255A537?

91255A537 is a SCREW,CAP,SOCKET HEAD.

What parts can replace 91255A537?

There are 2 known substitutes for 91255A537: T107262, 391 1401 302. Substitute compatibility should be verified for your specific system.

What is the NSN for 91255A537?

91255A537 is cataloged in the U.S. Government catalog under NSN 5305-01-254-0850. This indicates validated use in U.S. government and defense supply chains.

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91255A537 — SCREW,CAP,SOCKET HEAD

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