38031-4F-8B — SCREW,CAP,SOCKET HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

38031-4F-8B: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: PAN, head_height: 0.122 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.419 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN, thread_length: 0.399 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-306-4844, 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

38031-4F-8B

NSN: 5305-01-306-4844
FSC: 5305 — Screws
CAGE: 98255 — DRS SUSTAINMENT SYSTEMS INC (USA)

SPECIFICATIONS

material	STEEL OVERALL
head_style	PAN
head_height	0.122 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN
thread_class	3A A
head_diameter	0.419 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
thread_length	0.399 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
thread_direction	RIGHT-HAND
surface_treatment	OXIDE OVERALL
width_across_flats	0.1562 INCHES NOMINAL IN
internal_drive_style	HEXAGON
NSN	5305-01-306-4844

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.1562 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: 0.399 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: PAN

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.1562 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	0.399 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	PAN
THREAD DIRECTION	RIGHT-HAND
COLOR	BLACK OVERALL
SURFACE TREATMENT	OXIDE OVERALL

OTHER ITEMS IN FSC 5305 — Screws

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

5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831

SUBSTITUTES & CROSS-REFERENCES 1

ES8388-02Reference 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 38031-4F-8B?

38031-4F-8B is a SCREW,CAP,SOCKET HEAD.

What parts can replace 38031-4F-8B?

There is 1 known substitute for 38031-4F-8B: ES8388-02. Substitute compatibility should be verified for your specific system.

What is the NSN for 38031-4F-8B?

38031-4F-8B is cataloged in the U.S. Government catalog under NSN 5305-01-306-4844. This indicates validated use in U.S. government and defense supply chains.

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38031-4F-8B — SCREW,CAP,SOCKET HEAD

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