Washer, Key5310-01-449-6545

NSN 5310-01-449-6545 · NIIN 014496545

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

Government record, cited

Also searched as 5310-01-449-6545 · 5310014496545 · NIIN 014496545 · 01-449-6545 · FSC 5310 Nuts and Washers · 203-4678525 PIECE 13 · 845-2050868 PIECE 8

Nearby stock numbers ← 5310-01-449-6509 Washer, Flat · 5310-01-449-6910 Nut, Self-Locking, Plate →

5310-01-449-6545 — Nuts and Washers

Features

Washer,key — FSC 5310
Distance From Centerline to End of Longest Key: 0.312 INCHES NOMINAL IN
Style Designator: KEY
Distance From Centerline to End of Shortest Key: 0.469 INCHES NOMINAL IN
Material Document and Classification: QQ-N-281 CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Material Thickness: 0.050 INCHES NOMINAL IN
External Straight Key Width: 0.188 INCHES NOMINAL IN
Material: NICKEL ALLOY 400 OVERALL

Identification

NSN: 5310-01-449-6545
NIIN: 014496545
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives

General Description

The Washer,key, cataloged under National Stock Number 5310-01-449-6545, 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8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	5310-01-449-6545
Item Name	Washer,key
FSC / FSG	5310 / 53 — Nuts and Washers
Status	ACTIVE
Distance From Centerline to End of Longest Key	0.312 INCHES NOMINAL IN
Style Designator	KEY
Distance From Centerline to End of Shortest Key	0.469 INCHES NOMINAL IN
Material Document and Classification	QQ-N-281 CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Material Thickness	0.050 INCHES NOMINAL IN
External Straight Key Width	0.188 INCHES NOMINAL IN
Material	NICKEL ALLOY 400 OVERALL
Hole Diameter	0.391 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
203-4678525 PIECE 13	5/2 Secondary reference U.S. Government activity
845-2050868 PIECE 8	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 5310-01-449-6545?

NSN 5310-01-449-6545 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.

What are the specifications of 5310-01-449-6545?

Key specifications for 5310-01-449-6545: Distance From Centerline to End of Longest Key: 0.312 INCHES NOMINAL IN; Style Designator: KEY; Distance From Centerline to End of Shortest Key: 0.469 INCHES NOMINAL IN; Material Document and Classification: QQ-N-281 CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 8 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-449-6545 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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