Washer, Lock5310-01-681-1922

NSN 5310-01-681-1922 · NIIN 016811922 · Part number 4D-7860

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

Government record, cited

NSN 5310-01-681-1922 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-681-1922. Manufacturer of record part number: 4D-7860.

Also searched as 5310-01-681-1922 · 5310016811922 · NIIN 016811922 · 01-681-1922 · FSC 5310 Nuts and Washers · CAGE 11083 · 4D-7860

Nearby stock numbers ← 5310-01-681-1896 Nut, Plain, Hexagon · 5310-01-681-1925 Washer, Lock →

5310-01-681-1922 — Nuts and Washers

Features

Washer,lock — FSC 5310
Style Designator: COUNTERSINK EXTERNAL TEETH
1 manufacturer part number on file
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense

Identification

NSN: 5310-01-681-1922
NIIN: 016811922
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 4D-7860
Manufacturer: Caterpillar Inc Div Caterpillar Defense

General Description

The Washer,lock, cataloged under National Stock Number 5310-01-681-1922, 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. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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	5310-01-681-1922
Primary Part Number	4D-7860
Item Name	Washer,lock
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Caterpillar Inc Div Caterpillar Defense
Status	ACTIVE
Style Designator	COUNTERSINK EXTERNAL TEETH

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
4D-7860 PRIMARY	Caterpillar Inc Div Caterpillar Defense (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 5310-01-681-1922?

NSN 5310-01-681-1922 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 5310-01-681-1922?

NSN 5310-01-681-1922 has 1 manufacturer part number on file: 4D-7860 (Caterpillar Inc Div Caterpillar Defense).

What are the specifications of 4D-7860?

Key specifications for 4D-7860: Style Designator: COUNTERSINK EXTERNAL TEETH; Special Features: PUMP,AUXILIARY,SEA WATER; Part Name Assigned by Controlling Agency: WASHER,LOCK; End Item Identification: C32 MARINE ENGINE. 1 specification is documented in the U.S. Government catalog.

Is NSN 5310-01-681-1922 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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