11657559 — WASHER,FLAT

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

11657559: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, thickness: 0.450 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN, hole_diameter: 0.675 INCHES MINIMUM AND 0.695 INCHES MAXIMUM IN, hardness_rating: 40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM, overall_diameter: 2.190 INCHES MINIMUM AND 2.310 INCHES MAXIMUM IN, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-159-6299, 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

11657559

NSN: 5310-00-159-6299
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)

SPECIFICATIONS

material	RUBBER SYNTHETIC OVERALL
thickness	0.450 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
hole_diameter	0.675 INCHES MINIMUM AND 0.695 INCHES MAXIMUM IN
hardness_rating	40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM
overall_diameter	2.190 INCHES MINIMUM AND 2.310 INCHES MAXIMUM IN
peripheral_shape_style	ROUND
center_hole_shape_style	ROUND
cross-sectional_shape_style	RECTANGULAR
material_document_and_classification	417,TY R,CL RS,GR 420 MIL STD SINGLE MATERIAL RESPONSE OVERALL
NSN	5310-00-159-6299

COMPONENT DIAGRAM

KEY FEATURES

•

OVERALL DIAMETER: 2.190 INCHES MINIMUM AND 2.310 INCHES MAXIMUM IN

•

HARDNESS RATING: 40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM

•

MATERIAL DOCUMENT AND CLASSIFICATION: 417,TY R,CL RS,GR 420 MIL STD SINGLE MATERIAL RESPONSE OVERALL

•

CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR

•

PERIPHERAL SHAPE STYLE: ROUND

•

MATERIAL: RUBBER SYNTHETIC OVERALL

•

CENTER HOLE SHAPE STYLE: ROUND

•

HOLE DIAMETER: 0.675 INCHES MINIMUM AND 0.695 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

OVERALL DIAMETER	2.190 INCHES MINIMUM AND 2.310 INCHES MAXIMUM IN
HARDNESS RATING	40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	417,TY R,CL RS,GR 420 MIL STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
PERIPHERAL SHAPE STYLE	ROUND
MATERIAL	RUBBER SYNTHETIC OVERALL
CENTER HOLE SHAPE STYLE	ROUND
HOLE DIAMETER	0.675 INCHES MINIMUM AND 0.695 INCHES MAXIMUM IN
THICKNESS	0.450 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN

SUBSTITUTES & CROSS-REFERENCES 2

5310001596299Reference document

Same NSN cross-reference

Reference document — Informative reference only

971669Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 11657559?

11657559 is a WASHER,FLAT.

What parts can replace 11657559?

There are 2 known substitutes for 11657559: 5310001596299, 971669. Substitute compatibility should be verified for your specific system.

What is the NSN for 11657559?

11657559 is cataloged in the U.S. Government catalog under NSN 5310-00-159-6299. This indicates validated use in U.S. government and defense supply chains.

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