Washer, Lock5310-01-578-4845

NSN 5310-01-578-4845 · NIIN 015784845 · Part number 2241-042100

United Instruments Inc. · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 16455

Government record, cited

NSN 5310-01-578-4845 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-578-4845. Manufacturer of record part number: 2241-042100.

Also searched as 5310-01-578-4845 · 5310015784845 · NIIN 015784845 · 01-578-4845 · FSC 5310 Nuts and Washers · CAGE 16455 · 2241-042100

Nearby stock numbers ← 5310-01-578-4690 Washer, Spring Tension · 5310-01-578-4863 Washer, Spring Tension →

5310-01-578-4845 — Nuts and Washers

Features

Washer,lock — FSC 5310
1 manufacturer part number on file
Manufacturer of record: United Instruments Inc.

Identification

NSN: 5310-01-578-4845
NIIN: 015784845
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 2241-042100
Manufacturer: United Instruments Inc.

General Description

The Washer,lock, cataloged under National Stock Number 5310-01-578-4845, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is United Instruments Inc.. 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	5310-01-578-4845
Primary Part Number	2241-042100
Item Name	Washer,lock
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	United Instruments Inc.
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
2241-042100 PRIMARY	United Instruments Inc. (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 5310-01-578-4845?

NSN 5310-01-578-4845 is a Washer,lock, manufactured by United Instruments Inc., classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-578-4845?

NSN 5310-01-578-4845 has 1 manufacturer part number on file: 2241-042100 (United Instruments Inc.).

What are the specifications of 2241-042100?

Key specifications for 2241-042100: Part Name Assigned by Controlling Agency: WASHER, LOCK; End Item Identification: AIRCRAFT, B-1B. 0 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-578-4845 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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