HT4057-4-3 — SCREW,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

HT4057-4-3: 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: 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN, head_diameter: 0.456 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-347-5250, 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

HT4057-4-3

NSN: 5305-01-347-5250
FSC: 5305 — Screws
CAGE: 80539 — SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA (USA)

SPECIFICATIONS

material	STEEL COMP XM-13 OVERALL
head_style	FLAT COUNTERSUNK
grip_length	0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN
thread_class	3A A
grip_diameter	0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN
head_diameter	0.456 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN
thread_length	0.406 INCHES NOMINAL IN
surface_finish	32.0 MICROINCHES BEARING SURFACE OF HEAD
fastener_length	0.578 INCHES MINIMUM AND 0.608 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
countersink_angle	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
features_provided	CETYL ALCOHOL LUBRICANT
NSN	5305-01-347-5250

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 32.0 MICROINCHES THREADS

•

FASTENER LENGTH: 0.578 INCHES MINIMUM AND 0.608 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-83488,TY2 CL3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.406 INCHES NOMINAL IN

•

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

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

TECHNICAL CHARACTERISTICS

SURFACE FINISH	32.0 MICROINCHES THREADS
SURFACE FINISH	32.0 MICROINCHES GRIP
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
FASTENER LENGTH	0.578 INCHES MINIMUM AND 0.608 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-C-83488,TY2 CL3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.406 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES IN
FEATURES PROVIDED	CETYL ALCOHOL LUBRICANT
HEAD STYLE	FLAT COUNTERSUNK

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

CHT4057-4-3Reference document

Same NSN cross-reference

Reference document — Design control — primary 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 HT4057-4-3?

HT4057-4-3 is a SCREW,CLOSE TOLERANCE.

What parts can replace HT4057-4-3?

There is 1 known substitute for HT4057-4-3: CHT4057-4-3. Substitute compatibility should be verified for your specific system.

What is the NSN for HT4057-4-3?

HT4057-4-3 is cataloged in the U.S. Government catalog under NSN 5305-01-347-5250. This indicates validated use in U.S. government and defense supply chains.

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