Washer, Split5310-01-691-8692

NSN 5310-01-691-8692 · NIIN 016918692 · Part number ML2490000A40000

Fastenal Company · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 3J0G7

Government record, cited

NSN 5310-01-691-8692 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-691-8692. Manufacturer of record part number: ML2490000A40000.

Also searched as 5310-01-691-8692 · 5310016918692 · NIIN 016918692 · 01-691-8692 · FSC 5310 Nuts and Washers · CAGE 3J0G7 · ML2490000A40000

Nearby stock numbers ← 5310-01-691-8685 Washer, Flat · 5310-01-691-8697 Washer, Lock →

5310-01-691-8692 — Nuts and Washers

Features

Washer,split — FSC 5310
Style Designator: SPLIT
Outside Diameter: 5.1 MILLIMETERS NOMINAL MM
Material: STEEL CORROSION RESISTING OVERALL
Hole Diameter: 2.9 MILLIMETERS NOMINAL MM
1 manufacturer part number on file
Manufacturer of record: Fastenal Company

Identification

NSN: 5310-01-691-8692
NIIN: 016918692
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: ML2490000A40000
Manufacturer: Fastenal Company

General Description

The Washer,split, cataloged under National Stock Number 5310-01-691-8692, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Fastenal Company. Government technical data includes 4 specifications, 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	5310-01-691-8692
Primary Part Number	ML2490000A40000
Item Name	Washer,split
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Fastenal Company
Status	ACTIVE
Style Designator	SPLIT
Outside Diameter	5.1 MILLIMETERS NOMINAL MM
Material	STEEL CORROSION RESISTING OVERALL
Hole Diameter	2.9 MILLIMETERS NOMINAL MM

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
ML2490000A40000 PRIMARY	Fastenal Company (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 5310-01-691-8692?

NSN 5310-01-691-8692 is a Washer,split, manufactured by Fastenal Company, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-691-8692?

NSN 5310-01-691-8692 has 1 manufacturer part number on file: ML2490000A40000 (Fastenal Company).

What are the specifications of ML2490000A40000?

Key specifications for ML2490000A40000: Style Designator: SPLIT; Outside Diameter: 5.1 MILLIMETERS NOMINAL MM; Part Name Assigned by Controlling Agency: M2.5 DIN 127 A4 STAINLESS STEEL SPLIT LOCK WASHER; End Item Identification: 5840016746986. 4 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-691-8692 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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