Washer, Flat5310-01-239-6401

NSN 5310-01-239-6401 · NIIN 012396401 · Part number 4081883CLB

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 77445

Government record, cited

NSN 5310-01-239-6401 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-239-6401. Manufacturer of record part number: 4081883CLB.

Also searched as 5310-01-239-6401 · 5310012396401 · NIIN 012396401 · 01-239-6401 · FSC 5310 Nuts and Washers · CAGE 77445 · 4081883CLB

Nearby stock numbers ← 5310-01-239-6400 Washer, Flat · 5310-01-239-6402 Washer, Flat →

5310-01-239-6401 — Nuts and Washers

Features

Washer,flat — FSC 5310
2 manufacturer part numbers on file
Manufacturer of record: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney

Identification

NSN: 5310-01-239-6401
NIIN: 012396401
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 4081883CLB
Manufacturer: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney

General Description

The Washer,flat, cataloged under National Stock Number 5310-01-239-6401, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Washer,flat
FSC / FSG	5310 — Nuts and Washers (FSG 53)
Manufacturers	Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (CAGE 77445); Rtx Corporation Div Pratt & Whitney (CAGE 52661)

Technical Specifications

Parameter	Value
NSN	5310-01-239-6401
Primary Part Number	4081883CLB
Item Name	Washer,flat
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
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
4081883CLB PRIMARY	Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
4081883CLB	Rtx Corporation Div Pratt & Whitney (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 5310-01-239-6401?

NSN 5310-01-239-6401 is a Washer,flat, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-239-6401?

NSN 5310-01-239-6401 has 2 manufacturer part numbers on file: 4081883CLB (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 4081883CLB (Rtx Corporation Div Pratt & Whitney).

Is NSN 5310-01-239-6401 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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