Washer, Key5310-01-255-0109

NSN 5310-01-255-0109 · NIIN 012550109

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

Government record, cited

Also searched as 5310-01-255-0109 · 5310012550109 · NIIN 012550109 · 01-255-0109 · FSC 5310 Nuts and Washers

Nearby stock numbers ← 5310-01-255-0108 · 5310-01-255-0110 Washer, Flat →

5310-01-255-0109 — Nuts and Washers

Features

Washer,key — FSC 5310
Internal Straight Key Width: 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
Distance From Centerline to Top of Internal Key: 0.330 INCHES NOMINAL0.330 INCHES NOMINAL IN
Style Designator: KEY
Material Document and Classification: 10705BV,CAGEC 90099 MFR REF SINGLE MATERIAL RESPONSE OVERALL
Outside Diameter: 1.750 INCHES NOMINAL1.750 INCHES NOMINAL IN
Material Thickness: 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
Material: STEEL CORROSION RESISTING OVERALL

Identification

NSN: 5310-01-255-0109
NIIN: 012550109
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives

General Description

The Washer,key, cataloged under National Stock Number 5310-01-255-0109, 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9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	5310-01-255-0109
Item Name	Washer,key
FSC / FSG	5310 / 53 — Nuts and Washers
Status	ACTIVE
Internal Straight Key Width	0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
Distance From Centerline to Top of Internal Key	0.330 INCHES NOMINAL0.330 INCHES NOMINAL IN
Style Designator	KEY
Material Document and Classification	10705BV,CAGEC 90099 MFR REF SINGLE MATERIAL RESPONSE OVERALL
Outside Diameter	1.750 INCHES NOMINAL1.750 INCHES NOMINAL IN
Material Thickness	0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
Material	STEEL CORROSION RESISTING OVERALL
Internal Key Quantity	11
Hole Diameter	0.900 INCHES NOMINAL0.900 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
1664C24H01	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 5310-01-255-0109?

NSN 5310-01-255-0109 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.

What are the specifications of 5310-01-255-0109?

Key specifications for 5310-01-255-0109: Internal Straight Key Width: 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN; Distance From Centerline to Top of Internal Key: 0.330 INCHES NOMINAL0.330 INCHES NOMINAL IN; Style Designator: KEY; Material Document and Classification: 10705BV,CAGEC 90099 MFR REF SINGLE MATERIAL RESPONSE OVERALL. 9 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-255-0109 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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