AS4987NP-4 — WASHER,FLAT

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

AS4987NP-4: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, thickness: 0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN, hole_diameter: 0.251 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN, overall_diameter: 0.521 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-534-7700, 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

AS4987NP-4

NSN: 5310-01-534-7700
FSC: 5310 — Nuts and Washers
CAGE: 10630 — ANILLO INDUSTRIES LLC (USA)

SPECIFICATIONS

material	IRON ALLOY 660 OVERALL
thickness	0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN
hole_diameter	0.251 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
overall_diameter	0.521 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN
peripheral_shape_style	ROUND
center_hole_shape_style	ROUND
end_item_identification	C-17A SUPPORT EQUIPMENT A
cross-sectional_shape_style	RECTANGULAR
material_document_and_classification	AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN	5310-01-534-7700

COMPONENT DIAGRAM

KEY FEATURES

•

OVERALL DIAMETER: 0.521 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR

•

PERIPHERAL SHAPE STYLE: ROUND

•

MATERIAL: IRON ALLOY 660 OVERALL

•

CENTER HOLE SHAPE STYLE: ROUND

•

HOLE DIAMETER: 0.251 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

OVERALL DIAMETER	0.521 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
PERIPHERAL SHAPE STYLE	ROUND
END ITEM IDENTIFICATION	C-17A SUPPORT EQUIPMENT A
MATERIAL	IRON ALLOY 660 OVERALL
CENTER HOLE SHAPE STYLE	ROUND
HOLE DIAMETER	0.251 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
THICKNESS	0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM 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

4D0012-4PSame 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 AS4987NP-4?

AS4987NP-4 is a WASHER,FLAT.

What parts can replace AS4987NP-4?

There is 1 known substitute for AS4987NP-4: 4D0012-4P. Substitute compatibility should be verified for your specific system.

What is the NSN for AS4987NP-4?

AS4987NP-4 is cataloged in the U.S. Government catalog under NSN 5310-01-534-7700. This indicates validated use in U.S. government and defense supply chains.

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