PartsTable TECHNICAL DATA SHEET

NSN 5310-01-577-2561Government record, cited

Washer, Flat5310-01-577-2561

NSN 5310-01-577-2561 · NIIN 015772561 · Part number 3823317

Fastenal Company Dba Fastenal Co · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 0Y3H3

Government record, cited

NSN 5310-01-577-2561 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-577-2561. Manufacturer of record part number: 3823317.

Also searched as 5310-01-577-2561 · 5310015772561 · NIIN 015772561 · 01-577-2561 · FSC 5310 Nuts and Washers · CAGE 0Y3H3 · 3823317

Nearby stock numbers ← 5310-01-577-2550 Nut, Self-Locking, Hexagon · 5310-01-577-2671 Nut, Self-Locking, Barrel →

5310-01-577-2561 — Nuts and Washers

Features

Washer,flat — FSC 5310
1 manufacturer part number on file
Manufacturer of record: Fastenal Company Dba Fastenal Co

Identification

NSN: 5310-01-577-2561
NIIN: 015772561
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 3823317
Manufacturer: Fastenal Company Dba Fastenal Co

General Description

The Washer,flat, cataloged under National Stock Number 5310-01-577-2561, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Fastenal Company Dba Fastenal Co. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Washer,flat
FSC / FSG	5310 — Nuts and Washers (FSG 53)
Manufacturers	Fastenal Company Dba Fastenal Co (CAGE 0Y3H3)

Technical Specifications

Parameter	Value
NSN	5310-01-577-2561
Primary Part Number	3823317
Item Name	Washer,flat
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Fastenal Company Dba Fastenal Co
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
3823317 PRIMARY	Fastenal Company Dba Fastenal Co (USA)

Reference documents

Reference	Meaning
3823317	7/2 Vendor item drawing reference Oshkosh Defense Llc
3823317	5/9 Secondary reference Oshkosh Corp

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 5310-01-577-2561?

NSN 5310-01-577-2561 is a Washer,flat, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-577-2561?

NSN 5310-01-577-2561 has 1 manufacturer part number on file: 3823317 (Fastenal Company Dba Fastenal Co).

Is NSN 5310-01-577-2561 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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