Washer, Lock5310-01-552-6251

NSN 5310-01-552-6251 · NIIN 015526251 · Part number 50NLOC1

Fastar Incorporated · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 1KDE3

Government record, cited

NSN 5310-01-552-6251 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-552-6251. Manufacturer of record part number: 50NLOC1.

Also searched as 5310-01-552-6251 · 5310015526251 · NIIN 015526251 · 01-552-6251 · FSC 5310 Nuts and Washers · CAGE 1KDE3 · 50NLOC1

Nearby stock numbers ← 5310-01-552-6249 Nut Assembly, Self-Locking, Gang C · 5310-01-552-6425 Nut, Plain, Slotted, Hexagon →

5310-01-552-6251 — Nuts and Washers

Features

Washer,lock — FSC 5310
1 manufacturer part number on file
Manufacturer of record: Fastar Incorporated

Identification

NSN: 5310-01-552-6251
NIIN: 015526251
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 50NLOC1
Manufacturer: Fastar Incorporated

General Description

The Washer,lock, cataloged under National Stock Number 5310-01-552-6251, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Fastar Incorporated. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5310-01-552-6251
Primary Part Number	50NLOC1
Item Name	Washer,lock
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Fastar Incorporated
Status	ACTIVE

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

Part Number	Manufacturer
50NLOC1 PRIMARY	Fastar Incorporated (USA)

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 5310-01-552-6251?

NSN 5310-01-552-6251 is a Washer,lock, manufactured by Fastar Incorporated, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-552-6251?

NSN 5310-01-552-6251 has 1 manufacturer part number on file: 50NLOC1 (Fastar Incorporated).

What are the specifications of 50NLOC1?

Key specifications for 50NLOC1: End Item Identification: TMSS-MED/EDFP. 0 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-552-6251 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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