SP7157 — WASHER,FLAT

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

SP7157: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: COPPER OVERALL, thickness: 0.054 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN, hole_diameter: 0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN, overall_diameter: 0.621 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN, surface_treatment: TIN OR SILVER OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-185-0113, 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

SP7157

NSN: 5310-00-185-0113
FSC: 5310 — Nuts and Washers
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)

SPECIFICATIONS

material	COPPER OVERALL
thickness	0.054 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN
hole_diameter	0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
overall_diameter	0.621 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
surface_treatment	TIN OR SILVER OVERALL
peripheral_shape_style	ROUND
center_hole_shape_style	ROUND
cross-sectional_shape_style	RECTANGULAR
departure_from_cited_document	AS MODIFIED BY MATERIAL SPECS AND AS MODIFIED BY OD
surface_treatment_document_and_classification	MIL-T-10727 TY 1 MIL SPEC 1ST TREATMENT RESPONSE OR QQ-S-365 GRADE B FED SPEC 2ND TREATMENT RESPONSE OVERALL
NSN	5310-00-185-0113

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-T-10727 TY 1 MIL SPEC 1ST TREATMENT RESPONSE OR QQ-S-365 GRADE B FED SPEC 2ND TREATMENT RESPONSE OVERALL

•

OVERALL DIAMETER: 0.621 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN

•

CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR

•

DEPARTURE FROM CITED DOCUMENT: AS MODIFIED BY MATERIAL SPECS AND AS MODIFIED BY OD

•

SURFACE TREATMENT: TIN OR SILVER OVERALL

•

PERIPHERAL SHAPE STYLE: ROUND

•

MATERIAL: COPPER OVERALL

•

CENTER HOLE SHAPE STYLE: ROUND

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-T-10727 TY 1 MIL SPEC 1ST TREATMENT RESPONSE OR QQ-S-365 GRADE B FED SPEC 2ND TREATMENT RESPONSE OVERALL
OVERALL DIAMETER	0.621 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
DEPARTURE FROM CITED DOCUMENT	AS MODIFIED BY MATERIAL SPECS AND AS MODIFIED BY OD
SURFACE TREATMENT	TIN OR SILVER OVERALL
PERIPHERAL SHAPE STYLE	ROUND
MATERIAL	COPPER OVERALL
CENTER HOLE SHAPE STYLE	ROUND
HOLE DIAMETER	0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
THICKNESS	0.054 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN

SUBSTITUTES & CROSS-REFERENCES 2

5310001850113Reference document

Same NSN cross-reference

Reference document — Informative reference only

AN961-516Reference document

Same NSN cross-reference

Reference document — Identification 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 SP7157?

SP7157 is a WASHER,FLAT.

What parts can replace SP7157?

There are 2 known substitutes for SP7157: 5310001850113, AN961-516. Substitute compatibility should be verified for your specific system.

What is the NSN for SP7157?

SP7157 is cataloged in the U.S. Government catalog under NSN 5310-00-185-0113. This indicates validated use in U.S. government and defense supply chains.

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