Washer, Lock5310-01-698-6441

NSN 5310-01-698-6441 · NIIN 016986441 · Part number 163-5372

Caterpillar Inc Div Caterpillar Defense · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 11083

Government record, cited

NSN 5310-01-698-6441 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-698-6441. Manufacturer of record part number: 163-5372.

Also searched as 5310-01-698-6441 · 5310016986441 · NIIN 016986441 · 01-698-6441 · FSC 5310 Nuts and Washers · CAGE 11083 · 163-5372 · A22771

Nearby stock numbers ← 5310-01-698-6281 Washer, Flat · 5310-01-698-6466 Washer, Lock →

5310-01-698-6441 — Nuts and Washers

Features

Washer,lock — FSC 5310
2 manufacturer part numbers on file
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense

Identification

NSN: 5310-01-698-6441
NIIN: 016986441
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 163-5372
Manufacturer: Caterpillar Inc Div Caterpillar Defense

General Description

The Washer,lock, cataloged under National Stock Number 5310-01-698-6441, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5310-01-698-6441
Primary Part Number	163-5372
Item Name	Washer,lock
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Caterpillar Inc Div Caterpillar Defense
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
163-5372 PRIMARY	Caterpillar Inc Div Caterpillar Defense (USA)
A22771	Unac (FRA)

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 5310-01-698-6441?

NSN 5310-01-698-6441 is a Washer,lock, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-698-6441?

NSN 5310-01-698-6441 has 2 manufacturer part numbers on file: 163-5372 (Caterpillar Inc Div Caterpillar Defense), A22771 (Unac).

What are the specifications of 163-5372?

Key specifications for 163-5372: Special Features: WASHER IS USED ON BOLT 5A-3604 THAT CONNECTS THE EXHUST ELBOW 238-9198 TO TURBOCHARGER 308-2308,WASHER IS 8X15.4X4-MILIMETER THICK A; Part Name Assigned by Controlling Agency: WASHER,LOCK; End Item Identification: C2.2 INDUSTRAIL DIESEL ENGINE. 0 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-698-6441 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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