HT4057-5L-8 — SCREW,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

HT4057-5L-8: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, head_style: FLAT COUNTERSUNK, grip_length: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN, head_diameter: 0.575 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-254-1365, 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

HT4057-5L-8

NSN: 5305-01-254-1365
FSC: 5305 — Screws
CAGE: 97928 — HUCK INTL INC (USA)

SPECIFICATIONS

material	STEEL COMP XM-13 OVERALL
head_style	FLAT COUNTERSUNK
grip_length	0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
thread_class	3A A
grip_diameter	0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
head_diameter	0.575 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
thread_length	0.506 INCHES MINIMUM AND 0.556 INCHES MAXIMUM IN
fastener_length	1.016 INCHES MINIMUM AND 1.046 INCHES MAXIMUM IN
special_features	CETYL ALCOHOL PER MIL-L-87132 TY 1 GR B
thread_direction	RIGHT-HAND
countersink_angle	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
surface_treatment	ALUMINUM AND CHROMATE OVERALL
NSN	5305-01-254-1365

COMPONENT DIAGRAM

KEY FEATURES

•

FASTENER LENGTH: 1.016 INCHES MINIMUM AND 1.046 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-83488 TY 2 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.506 INCHES MINIMUM AND 0.556 INCHES MAXIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.312 INCHES IN

•

HEAD STYLE: FLAT COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

•

GRIP LENGTH: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

FASTENER LENGTH	1.016 INCHES MINIMUM AND 1.046 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-C-83488 TY 2 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.506 INCHES MINIMUM AND 0.556 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.312 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
GRIP LENGTH	0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
GRIP DIAMETER	0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
SPECIAL FEATURES	CETYL ALCOHOL PER MIL-L-87132 TY 1 GR B

SUBSTITUTES & CROSS-REFERENCES 2

HT4057-5-8ASame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

ST3M733Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

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 HT4057-5L-8?

HT4057-5L-8 is a SCREW,CLOSE TOLERANCE.

What parts can replace HT4057-5L-8?

There are 2 known substitutes for HT4057-5L-8: HT4057-5-8A, ST3M733. Substitute compatibility should be verified for your specific system.

What is the NSN for HT4057-5L-8?

HT4057-5L-8 is cataloged in the U.S. Government catalog under NSN 5305-01-254-1365. This indicates validated use in U.S. government and defense supply chains.

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