Washer, Flat5310-01-040-5873

NSN 5310-01-040-5873 · NIIN 010405873

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

Government record, cited

Also searched as 5310-01-040-5873 · 5310010405873 · NIIN 010405873 · 01-040-5873 · FSC 5310 Nuts and Washers

Nearby stock numbers ← 5310-01-040-5495 · 5310-01-040-5913 Nut, Sheet Spring →

5310-01-040-5873 — Nuts and Washers

Features

Washer,flat — FSC 5310
Overall Diameter: 0.940 INCHES NOMINAL IN
Cross-Sectional Shape Style: RECTANGULAR
Peripheral Shape Style: ROUND
Material: STEEL COMP 1020 OVERALL
Center Hole Shape Style: ROUND
Hole Diameter: 0.520 INCHES NOMINAL IN
Thickness: 0.094 INCHES NOMINAL IN

Identification

NSN: 5310-01-040-5873
NIIN: 010405873
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives

General Description

The Washer,flat, cataloged under National Stock Number 5310-01-040-5873, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5310-01-040-5873
Item Name	Washer,flat
FSC / FSG	5310 / 53 — Nuts and Washers
Status	ACTIVE
Overall Diameter	0.940 INCHES NOMINAL IN
Cross-Sectional Shape Style	RECTANGULAR
Peripheral Shape Style	ROUND
Material	STEEL COMP 1020 OVERALL
Center Hole Shape Style	ROUND
Hole Diameter	0.520 INCHES NOMINAL IN
Thickness	0.094 INCHES NOMINAL 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

⇄ Related Items 1

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

6220-01-221-77451-1020-110 POSSIBLE MATCH

LIGHT,WARNING

Possible match (shared part number)Akron Brass Company Dba Weldon Technologies

Cross-Reference Index

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

Reference documents

Reference	Meaning
3-26771	3/2 Design control — primary reference U.S. Government activity

Related Parts

6220-01-221-7745POSSIBLE MATCH

LIGHT,WARNING

1-1020-110

Frequently Asked Questions

What is NSN 5310-01-040-5873?

NSN 5310-01-040-5873 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.

What NSN replaces 5310-01-040-5873?

1 possible match (shared part number, not a government interchangeability claim): 6220-01-221-7745. Verify interchangeability with system specifications before substitution.

What are the specifications of 5310-01-040-5873?

Key specifications for 5310-01-040-5873: Overall Diameter: 0.940 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: STEEL COMP 1020 OVERALL. 7 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-040-5873 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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