Washer, Shouldered and Recessed5310-01-043-2451

NSN 5310-01-043-2451 · NIIN 010432451

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

Government record, cited

Also searched as 5310-01-043-2451 · 5310010432451 · NIIN 010432451 · 01-043-2451 · FSC 5310 Nuts and Washers

Nearby stock numbers ← 5310-01-043-2450 Washer, Flat · 5310-01-043-2765 Nut, Plain, Clinch →

5310-01-043-2451 — Nuts and Washers

Features

Washer,shouldered and Recessed — FSC 5310
Shoulder Height: 0.050 INCHES NOMINAL IN
Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
Style Designator: SHOULDERED AND RECESSED
Recess Depth: 0.055 INCHES NOMINAL IN
Material Thickness: 0.055 INCHES NOMINAL IN
Shoulder Diameter: 0.842 INCHES NOMINAL IN
Recess Diameter: 0.600 INCHES NOMINAL IN

Identification

NSN: 5310-01-043-2451
NIIN: 010432451
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives

General Description

The Washer,shouldered and Recessed, cataloged under National Stock Number 5310-01-043-2451, 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8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5310-01-043-2451
Item Name	Washer,shouldered and Recessed
FSC / FSG	5310 / 53 — Nuts and Washers
Status	ACTIVE
Shoulder Height	0.050 INCHES NOMINAL IN
Hardness Rating	30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
Style Designator	SHOULDERED AND RECESSED
Recess Depth	0.055 INCHES NOMINAL IN
Material Thickness	0.055 INCHES NOMINAL IN
Shoulder Diameter	0.842 INCHES NOMINAL IN
Recess Diameter	0.600 INCHES NOMINAL IN
Hole Diameter	0.260 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

Cross-Reference Index

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

Reference documents

Reference	Meaning
716908	3/2 Design control — primary reference U.S. Government activity

Frequently Asked Questions

What is NSN 5310-01-043-2451?

NSN 5310-01-043-2451 is a Washer,shouldered and Recessed, classified under FSC 5310, Nuts and Washers. Status: active.

What are the specifications of 5310-01-043-2451?

Key specifications for 5310-01-043-2451: Shoulder Height: 0.050 INCHES NOMINAL IN; Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM; Style Designator: SHOULDERED AND RECESSED; Recess Depth: 0.055 INCHES NOMINAL IN. 8 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-043-2451 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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