WC4057-4-17 — SCREW,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

WC4057-4-17: 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: 1.0525 INCHES MINIMUM AND 1.0725 INCHES MAXIMUM IN, point_style: FLAT, point_length: 0.045 INCHES NOMINAL IN, thread_class: 3A A. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-725-0777, 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

WC4057-4-17

NSN: 5305-01-725-0777
FSC: 5305 — Screws
CAGE: 60516 — WEST COAST AEROSPACE, INC. (USA)

SPECIFICATIONS

material	STEEL COMP XM-13 OVERALL
head_style	FLAT COUNTERSUNK
grip_length	1.0525 INCHES MINIMUM AND 1.0725 INCHES MAXIMUM IN
point_style	FLAT
point_length	0.045 INCHES NOMINAL 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	0.469 INCHES NOMINAL IN
fastener_length	1.5165 INCHES MINIMUM AND 1.5465 INCHES MAXIMUM IN
thread_direction	RIGHT-HAND
countersink_angle	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
NSN	5305-01-725-0777

COMPONENT DIAGRAM

KEY FEATURES

•

POINT LENGTH: 0.045 INCHES NOMINAL IN

•

FASTENER LENGTH: 1.5165 INCHES MINIMUM AND 1.5465 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-DTL-83488, TYPE II, CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.469 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: PH-13-8MO CRES PER AMS 5629 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE OVERALL

•

POINT CHAMFER ANGLE: 45.0 DEGREES NOMINAL

•

SINGLE SHEAR STRENGTH: ERR-060

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

TECHNICAL CHARACTERISTICS

POINT LENGTH	0.045 INCHES NOMINAL IN
FASTENER LENGTH	1.5165 INCHES MINIMUM AND 1.5465 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-DTL-83488, TYPE II, CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.469 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	PH-13-8MO CRES PER AMS 5629 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE OVERALL
POINT CHAMFER ANGLE	45.0 DEGREES NOMINAL
SINGLE SHEAR STRENGTH	ERR-060
NOMINAL THREAD DIAMETER	0.250 INCHES IN
FEATURES PROVIDED	CETYL ALCOHOL LUBRICANT
HEAD STYLE	FLAT COUNTERSUNK

SUBSTITUTES & CROSS-REFERENCES 4

HT4057-4-17ASame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

11935-4L17Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

ST3M733-4L17Same 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: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is WC4057-4-17?

WC4057-4-17 is a SCREW,CLOSE TOLERANCE.

What parts can replace WC4057-4-17?

There are 4 known substitutes for WC4057-4-17: HT4057-4-17A, 11935-4L17, ST3M733-4L17 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for WC4057-4-17?

WC4057-4-17 is cataloged in the U.S. Government catalog under NSN 5305-01-725-0777. This indicates validated use in U.S. government and defense supply chains.

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