8666561 — WASHER,PANEL FASTENER SCREW

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

8666561: WASHER,PANEL FASTENER SCREW.

The WASHER,PANEL FASTENER SCREW is a the manufacturer industrial component. Key specifications include thickness: 0.031 INCHES NOMINAL IN, hole_diameter: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, overall_diameter: 0.610 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND, cross-sectional_shape_style: RECTANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-682-5631, 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

8666561

NSN: 5310-00-682-5631
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)

SPECIFICATIONS

thickness	0.031 INCHES NOMINAL IN
hole_diameter	0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
overall_diameter	0.610 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
peripheral_shape_style	ROUND
center_hole_shape_style	ROUND
cross-sectional_shape_style	RECTANGULAR
material_document_and_classification	UNABLE TO DECODE
NSN	5310-00-682-5631

COMPONENT DIAGRAM

KEY FEATURES

•

OVERALL DIAMETER: 0.610 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE

•

CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR

•

PERIPHERAL SHAPE STYLE: ROUND

•

CENTER HOLE SHAPE STYLE: ROUND

•

HOLE DIAMETER: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN

•

THICKNESS: 0.031 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

OVERALL DIAMETER	0.610 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	UNABLE TO DECODE
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
PERIPHERAL SHAPE STYLE	ROUND
CENTER HOLE SHAPE STYLE	ROUND
HOLE DIAMETER	0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
THICKNESS	0.031 INCHES NOMINAL IN

OTHER ITEMS IN FSC 5310 — Nuts and Washers

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540

SUBSTITUTES & CROSS-REFERENCES 1

5310006825631Reference document

Same NSN cross-reference

Reference document — Secondary 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 8666561?

8666561 is a WASHER,PANEL FASTENER SCREW.

What parts can replace 8666561?

There is 1 known substitute for 8666561: 5310006825631. Substitute compatibility should be verified for your specific system.

What is the NSN for 8666561?

8666561 is cataloged in the U.S. Government catalog under NSN 5310-00-682-5631. This indicates validated use in U.S. government and defense supply chains.

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8666561 — WASHER,PANEL FASTENER SCREW

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