999-4560-318A — WASHER,FLAT

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

999-4560-318A: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, thickness: 0.018 INCHES MINIMUM AND 0.022 INCHES MAXIMUM IN, hole_diameter: 0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN, overall_diameter: 0.178 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN, surface_treatment: PASSIVATE OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-472-5338, 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

999-4560-318A

NSN: 5310-00-472-5338
FSC: 5310 — Nuts and Washers
CAGE: 19710 — MPC PRODUCTS CORPORATION DBA WOODWARD MPC, INC. (USA)

SPECIFICATIONS

material	STEEL COMP 303 OVERALL
thickness	0.018 INCHES MINIMUM AND 0.022 INCHES MAXIMUM IN
hole_diameter	0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN
overall_diameter	0.178 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
surface_treatment	PASSIVATE OVERALL
peripheral_shape_style	ROUND
center_hole_shape_style	ROUND
cross-sectional_shape_style	RECTANGULAR
material_document_and_classification	QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classification	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN	5310-00-472-5338

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

OVERALL DIAMETER: 0.178 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL

•

CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR

•

SURFACE TREATMENT: PASSIVATE OVERALL

•

PERIPHERAL SHAPE STYLE: ROUND

•

MATERIAL: STEEL COMP 303 OVERALL

•

CENTER HOLE SHAPE STYLE: ROUND

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
OVERALL DIAMETER	0.178 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
SURFACE TREATMENT	PASSIVATE OVERALL
PERIPHERAL SHAPE STYLE	ROUND
MATERIAL	STEEL COMP 303 OVERALL
CENTER HOLE SHAPE STYLE	ROUND
HOLE DIAMETER	0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN
THICKNESS	0.018 INCHES MINIMUM AND 0.022 INCHES MAXIMUM IN

SUBSTITUTES & CROSS-REFERENCES 1

794842-1Reference document

Same NSN cross-reference

Reference document — Replaced / superseded reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 999-4560-318A?

999-4560-318A is a WASHER,FLAT.

What parts can replace 999-4560-318A?

There is 1 known substitute for 999-4560-318A: 794842-1. Substitute compatibility should be verified for your specific system.

What is the NSN for 999-4560-318A?

999-4560-318A is cataloged in the U.S. Government catalog under NSN 5310-00-472-5338. This indicates validated use in U.S. government and defense supply chains.

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