Washer, Flat5310-01-561-5754

NSN 5310-01-561-5754 · NIIN 015615754 · Part number 40NWSAS

Standard Bolt Nut and Screw Co · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 3L891

Government record, cited

NSN 5310-01-561-5754 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-561-5754. Manufacturer of record part number: 40NWSAS.

Also searched as 5310-01-561-5754 · 5310015615754 · NIIN 015615754 · 01-561-5754 · FSC 5310 Nuts and Washers · CAGE 3L891 · 40NWSAS

Nearby stock numbers ← 5310-01-561-5485 Washer, Flat · 5310-01-561-5914 Washer, Flat →

5310-01-561-5754 — Nuts and Washers

Features

Washer,flat — FSC 5310
Overall Diameter: 9.0 MILLIMETERS NOMINAL MM
Cross-Sectional Shape Style: RECTANGULAR
Surface Treatment: PASSIVATE OVERALL
Peripheral Shape Style: ROUND
Material: STEEL CORROSION RESISTING OVERALL
Center Hole Shape Style: ROUND
Hole Diameter: 4.3 MILLIMETERS NOMINAL MM

Identification

NSN: 5310-01-561-5754
NIIN: 015615754
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 40NWSAS
Manufacturer: Standard Bolt Nut and Screw Co

General Description

The Washer,flat, cataloged under National Stock Number 5310-01-561-5754, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Standard Bolt Nut and Screw Co. Government technical data includes 8 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	5310-01-561-5754
Primary Part Number	40NWSAS
Item Name	Washer,flat
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Standard Bolt Nut and Screw Co
Status	ACTIVE
Overall Diameter	9.0 MILLIMETERS NOMINAL MM
Cross-Sectional Shape Style	RECTANGULAR
Surface Treatment	PASSIVATE OVERALL
Peripheral Shape Style	ROUND
Material	STEEL CORROSION RESISTING OVERALL
Center Hole Shape Style	ROUND
Hole Diameter	4.3 MILLIMETERS NOMINAL MM
Thickness	0.8 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
40NWSAS PRIMARY	Standard Bolt Nut and Screw Co (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 5310-01-561-5754?

NSN 5310-01-561-5754 is a Washer,flat, manufactured by Standard Bolt Nut and Screw Co, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-561-5754?

NSN 5310-01-561-5754 has 1 manufacturer part number on file: 40NWSAS (Standard Bolt Nut and Screw Co).

What are the specifications of 40NWSAS?

Key specifications for 40NWSAS: Overall Diameter: 9.0 MILLIMETERS NOMINAL MM; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: PASSIVATE OVERALL; Peripheral Shape Style: ROUND. 8 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-561-5754 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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