Washer, Lock5310-01-347-8261

NSN 5310-01-347-8261 · NIIN 013478261

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

Government record, cited

Also searched as 5310-01-347-8261 · 5310013478261 · NIIN 013478261 · 01-347-8261 · FSC 5310 Nuts and Washers

Nearby stock numbers ← 5310-01-347-8260 Washer, Flat · 5310-01-347-8262 Washer, Lock →

5310-01-347-8261 — Nuts and Washers

Features

Washer,lock — FSC 5310
Surface Treatment Document and Classification: QQ-P-416,CL 2,TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Hardness Rating: 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
Material Document and Classification: MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Outside Diameter: 1.072 INCHES NOMINAL IN
Material Thickness: 0.050 INCHES NOMINAL IN
Specification/standard Data: 80205-NAS1443 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Surface Treatment: CADMIUM AND CHROMATE OVERALL

Identification

NSN: 5310-01-347-8261
NIIN: 013478261
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives

General Description

The Washer,lock, cataloged under National Stock Number 5310-01-347-8261, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	5310-01-347-8261
Item Name	Washer,lock
FSC / FSG	5310 / 53 — Nuts and Washers
Status	ACTIVE
Surface Treatment Document and Classification	QQ-P-416,CL 2,TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Hardness Rating	34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
Material Document and Classification	MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Outside Diameter	1.072 INCHES NOMINAL IN
Material Thickness	0.050 INCHES NOMINAL IN
Specification/standard Data	80205-NAS1443 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Surface Treatment	CADMIUM AND CHROMATE OVERALL
Material	STEEL COMP 4130 OVERALL
Hole Diameter	1.000 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
NAS1443-S5P	3/2 Design control — primary reference U.S. Government activity

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 5310-01-347-8261?

NSN 5310-01-347-8261 is a Washer,lock, classified under FSC 5310, Nuts and Washers. Status: active.

What are the specifications of 5310-01-347-8261?

Key specifications for 5310-01-347-8261: Surface Treatment Document and Classification: QQ-P-416,CL 2,TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Hardness Rating: 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM; Material Document and Classification: MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 1.072 INCHES NOMINAL IN. 9 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-347-8261 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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