PartsTable TECHNICAL DATA SHEET

NSN 5310-01-488-5661Government record, cited

Washer, Lock5310-01-488-5661

NSN 5310-01-488-5661 · NIIN 014885661 · Part number 1690-30-0009

National Oilwell Varco Inc Dba National Oilwell · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 52142

Government record, cited

NSN 5310-01-488-5661 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-488-5661. Manufacturer of record part number: 1690-30-0009.

Also searched as 5310-01-488-5661 · 5310014885661 · NIIN 014885661 · 01-488-5661 · FSC 5310 Nuts and Washers · CAGE 52142 · 1690-30-0009 · G95952

Nearby stock numbers ← 5310-01-488-5611 Washer, Flat · 5310-01-488-5664 Washer, Lock →

5310-01-488-5661 — Nuts and Washers

Features

Washer,lock — FSC 5310
1 manufacturer part number on file
Manufacturer of record: National Oilwell Varco Inc Dba National Oilwell

Identification

NSN: 5310-01-488-5661
NIIN: 014885661
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 1690-30-0009
Manufacturer: National Oilwell Varco Inc Dba National Oilwell

General Description

The Washer,lock, cataloged under National Stock Number 5310-01-488-5661, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is National Oilwell Varco Inc Dba National Oilwell. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	National Oilwell Varco Inc Dba National Oilwell (CAGE 52142)

Technical Specifications

Parameter	Value
NSN	5310-01-488-5661
Primary Part Number	1690-30-0009
Item Name	Washer,lock
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	National Oilwell Varco Inc Dba National Oilwell
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
1690-30-0009 PRIMARY	National Oilwell Varco Inc Dba National Oilwell (USA)

Reference documents

Reference	Meaning
G95952	D/9 Drawing number reference only National Oilwell Varco Inc Dba National Oilwell

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 5310-01-488-5661?

NSN 5310-01-488-5661 is a Washer,lock, manufactured by National Oilwell Varco Inc Dba National Oilwell, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-488-5661?

NSN 5310-01-488-5661 has 1 manufacturer part number on file: 1690-30-0009 (National Oilwell Varco Inc Dba National Oilwell).

Is NSN 5310-01-488-5661 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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