PartsTable TECHNICAL DATA SHEET

NSN 5310-01-389-0084Government record, cited

Washer, Lock5310-01-389-0084

NSN 5310-01-389-0084 · NIIN 013890084 · Part number 21553820

Fairbanks Morse, Llc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 7PZX0

Government record, cited

NSN 5310-01-389-0084 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-389-0084. Manufacturer of record part number: 21553820.

Also searched as 5310-01-389-0084 · 5310013890084 · NIIN 013890084 · 01-389-0084 · FSC 5310 Nuts and Washers · CAGE 7PZX0 · 21553820

Nearby stock numbers ← 5310-01-389-0081 Nut, Plain, Extended Washer, Square · 5310-01-389-0090 Nut, Plain, Hexagon →

5310-01-389-0084 — Nuts and Washers

Features

Washer,lock — FSC 5310
1 manufacturer part number on file
Manufacturer of record: Fairbanks Morse, Llc

Identification

NSN: 5310-01-389-0084
NIIN: 013890084
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 21553820
Manufacturer: Fairbanks Morse, Llc

General Description

The Washer,lock, cataloged under National Stock Number 5310-01-389-0084, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Fairbanks Morse, Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Washer,lock
FSC / FSG	5310 — Nuts and Washers (FSG 53)
Manufacturers	Fairbanks Morse, Llc (CAGE 7PZX0)

Technical Specifications

Parameter	Value
NSN	5310-01-389-0084
Primary Part Number	21553820
Item Name	Washer,lock
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Fairbanks Morse, Llc
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

Cross-Reference Index

Part Number	Manufacturer
21553820 PRIMARY	Fairbanks Morse, Llc (USA)

Reference documents

Reference	Meaning
21553820	3/9 Design control — primary reference Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco

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 5310-01-389-0084?

NSN 5310-01-389-0084 is a Washer,lock, manufactured by Fairbanks Morse, Llc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-389-0084?

NSN 5310-01-389-0084 has 1 manufacturer part number on file: 21553820 (Fairbanks Morse, Llc).

Is NSN 5310-01-389-0084 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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