Nut, Plain, Hexagon5310-01-665-3585

NSN 5310-01-665-3585 · NIIN 016653585 · Part number 4081640

Oshkosh Defense Llc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 75Q65

Government record, cited

NSN 5310-01-665-3585 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-665-3585. Manufacturer of record part number: 4081640.

Also searched as 5310-01-665-3585 · 5310016653585 · NIIN 016653585 · 01-665-3585 · FSC 5310 Nuts and Washers · CAGE 75Q65 · 4081640

Nearby stock numbers ← 5310-01-665-3431 Nut, Plain, Hexagon · 5310-01-665-3599 Washer, Recessed →

5310-01-665-3585 — Nuts and Washers

Features

Nut,plain,hexagon — FSC 5310
Width Across Flats: 0.56 INCHES NOMINAL IN
Thread Series: UNIFIED NATIONAL COARSE (UNC)
Thread Direction: RIGHT-HAND
Nominal Thread Size: 0.38 INCHES IN
Nut Height: 0.22 INCHES NOMINAL IN
Surface Treatment: PHOSPHATE ZINC OVERALL
Nut Style: HEXAGON

Identification

NSN: 5310-01-665-3585
NIIN: 016653585
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 4081640
Manufacturer: Oshkosh Defense Llc

General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-665-3585, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Defense Llc. Government technical data includes 11 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	5310-01-665-3585
Primary Part Number	4081640
Item Name	Nut,plain,hexagon
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Oshkosh Defense Llc
Status	ACTIVE
Width Across Flats	0.56 INCHES NOMINAL IN
Thread Series	UNIFIED NATIONAL COARSE (UNC)
Thread Direction	RIGHT-HAND
Nominal Thread Size	0.38 INCHES IN
Nut Height	0.22 INCHES NOMINAL IN
Surface Treatment	PHOSPHATE ZINC OVERALL
Nut Style	HEXAGON
Thread Class	2B
Thread Quantity Per Inch	16
Material	STEEL OVERALL
Bearing Surface Type	CHAMFERED

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
4081640 PRIMARY	Oshkosh Defense Llc (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 5310-01-665-3585?

NSN 5310-01-665-3585 is a Nut,plain,hexagon, manufactured by Oshkosh Defense Llc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-665-3585?

NSN 5310-01-665-3585 has 1 manufacturer part number on file: 4081640 (Oshkosh Defense Llc).

What are the specifications of 4081640?

Key specifications for 4081640: Width Across Flats: 0.56 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.38 INCHES IN. 11 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-665-3585 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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