Washer, Flat5310-01-321-8610

NSN 5310-01-321-8610 · NIIN 013218610

FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives

Government record, cited

Also searched as 5310-01-321-8610 · 5310013218610 · NIIN 013218610 · 01-321-8610 · FSC 5310 Nuts and Washers · 274517 · 274517

Nearby stock numbers ← 5310-01-321-8609 · 5310-01-321-8611 Washer, Concave →

5310-01-321-8610 — Nuts and Washers

Features

Washer,flat — FSC 5310
Overall Diameter: 0.727 INCHES MINIMUM AND 0.749 INCHES MAXIMUM IN
Cross-Sectional Shape Style: RECTANGULAR
Surface Treatment: ZINC OVERALL
Peripheral Shape Style: ROUND
Material: STEEL OVERALL
Center Hole Shape Style: ROUND
Hole Diameter: 0.401 INCHES MINIMUM AND 0.421 INCHES MAXIMUM IN

Identification

NSN: 5310-01-321-8610
NIIN: 013218610
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives

General Description

The Washer,flat, cataloged under National Stock Number 5310-01-321-8610, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5310-01-321-8610
Item Name	Washer,flat
FSC / FSG	5310 / 53 — Nuts and Washers
Status	ACTIVE
Overall Diameter	0.727 INCHES MINIMUM AND 0.749 INCHES MAXIMUM IN
Cross-Sectional Shape Style	RECTANGULAR
Surface Treatment	ZINC OVERALL
Peripheral Shape Style	ROUND
Material	STEEL OVERALL
Center Hole Shape Style	ROUND
Hole Diameter	0.401 INCHES MINIMUM AND 0.421 INCHES MAXIMUM IN
Thickness	0.056 INCHES MINIMUM AND 0.071 INCHES MAXIMUM IN

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
274517	3/9 Design control — primary reference General Motors Corp
274517	C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc

No interchangeability data on file.

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

5310-00-000-0040 · Item name not on file

5310-00-000-0077

NUT,PLAIN,ROUND

5310-00-000-0079

WASHER,FLAT

5310-00-000-0079

WASHER,FLAT

5310-00-000-1146

5310-00-000-1146 · Item name not on file

5310-00-000-3815

5310-00-000-3815 · Item name not on file

5310-00-000-4532

5310-00-000-4532 · Item name not on file

5310-00-000-4540

5310-00-000-4540 · Item name not on file

Frequently Asked Questions

What is NSN 5310-01-321-8610?

NSN 5310-01-321-8610 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.

What are the specifications of 5310-01-321-8610?

Key specifications for 5310-01-321-8610: Overall Diameter: 0.727 INCHES MINIMUM AND 0.749 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: ZINC OVERALL; Peripheral Shape Style: ROUND. 8 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-321-8610 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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