Nut, Self-Locking, Extended Washer5310-01-155-1905

NSN 5310-01-155-1905 · NIIN 011551905 · Part number 115303A

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

Government record, cited

NSN 5310-01-155-1905 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-155-1905. Manufacturer of record part number: 115303A.

Also searched as 5310-01-155-1905 · 5310011551905 · NIIN 011551905 · 01-155-1905 · FSC 5310 Nuts and Washers · CAGE 75Q65 · 115303A · BCP4018 · 37340

Nearby stock numbers ← 5310-01-155-1904 · 5310-01-155-1906 Nut, Sleeve →

5310-01-155-1905 — Nuts and Washers

Features

Nut,self-Locking,extended Washer — FSC 5310
3 manufacturer part numbers on file
Manufacturer of record: Oshkosh Defense Llc

Identification

NSN: 5310-01-155-1905
NIIN: 011551905
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 115303A
Manufacturer: Oshkosh Defense Llc

General Description

The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-155-1905, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Defense Llc. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts

Item Name	Nut,self-Locking,extended Washer
FSC / FSG	5310 — Nuts and Washers (FSG 53)
Manufacturers	Brighton Cromwell Llc (CAGE 3NNX8); Fastenal (CAGE L05Q2); Oshkosh Defense Llc (CAGE 75Q65)

Technical Specifications

Parameter	Value
NSN	5310-01-155-1905
Primary Part Number	115303A
Item Name	Nut,self-Locking,extended Washer
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Oshkosh Defense Llc
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

⇄ Related Items 2

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

3120-01-420-05154000-37330 ITEM 10 POSSIBLE MATCH

BEARING,SLEEVE

Possible match (shared part number)Moog Inc. Dba Ampac-Isp Corp

5310-01-555-498812759-00460 POSSIBLE MATCH

NUT,PLAIN,HEXAGON

Possible match (shared part number)Fastenal Company Dba Fastenal Co

Cross-Reference Index

Part Number	Manufacturer
BCP4018	Brighton Cromwell Llc (USA)
37340	Fastenal (CAN)
115303A PRIMARY	Oshkosh Defense Llc (USA)

Reference documents

Reference	Meaning
115303A	5/9 Secondary reference Oshkosh Corp

Related Parts

3120-01-420-0515POSSIBLE MATCH

BEARING,SLEEVE

4000-37330 ITEM 10

5310-01-555-4988POSSIBLE MATCH

NUT,PLAIN,HEXAGON

12759-00460

Frequently Asked Questions

What is NSN 5310-01-155-1905?

NSN 5310-01-155-1905 is a Nut,self-Locking,extended Washer, manufactured by Oshkosh Defense Llc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-155-1905?

NSN 5310-01-155-1905 has 3 manufacturer part numbers on file: BCP4018 (Brighton Cromwell Llc), 37340 (Fastenal), 115303A (Oshkosh Defense Llc).

What NSN replaces 5310-01-155-1905?

2 possible matches (shared part number, not a government interchangeability claim): 3120-01-420-0515, 5310-01-555-4988. Verify interchangeability with system specifications before substitution.

Is NSN 5310-01-155-1905 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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