Washer, Flat5310-01-019-4531

NSN 5310-01-019-4531 · NIIN 010194531 · Part number 11743395-1

Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 19200

Government record, cited

NSN 5310-01-019-4531 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-019-4531. Manufacturer of record part number: 11743395-1.

Also searched as 5310-01-019-4531 · 5310010194531 · NIIN 010194531 · 01-019-4531 · FSC 5310 Nuts and Washers · CAGE 19200 · 11743395-1

Nearby stock numbers ← 5310-01-019-4473 Washer, Flat · 5310-01-019-4757 →

5310-01-019-4531 — Nuts and Washers

Features

Washer,flat — FSC 5310
Overall Diameter: 0.437 INCHES NOMINAL IN
Inside Right Corner Chamfer Angle: 45.0 DEGREES NOMINAL
Hardness Rating: 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
Material Document and Classification: ASTMA582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Cross-Sectional Shape Style: RECTANGULAR
Inside Left Corner Chamfer Angle: 45.0 DEGREES NOMINAL
Peripheral Shape Style: ROUND

Identification

NSN: 5310-01-019-4531
NIIN: 010194531
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 11743395-1
Manufacturer: Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate

General Description

The Washer,flat, cataloged under National Stock Number 5310-01-019-4531, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. 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	5310-01-019-4531
Primary Part Number	11743395-1
Item Name	Washer,flat
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
Status	ACTIVE
Overall Diameter	0.437 INCHES NOMINAL IN
Inside Right Corner Chamfer Angle	45.0 DEGREES NOMINAL
Hardness Rating	39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
Material Document and Classification	ASTMA582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Cross-Sectional Shape Style	RECTANGULAR
Inside Left Corner Chamfer Angle	45.0 DEGREES NOMINAL
Peripheral Shape Style	ROUND
Material	STEEL OVERALL
Center Hole Shape Style	ROUND
Hole Diameter	0.193 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN
Thickness	0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN

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
11743395-1 PRIMARY	Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (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 5310-01-019-4531?

NSN 5310-01-019-4531 is a Washer,flat, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-019-4531?

NSN 5310-01-019-4531 has 1 manufacturer part number on file: 11743395-1 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).

What are the specifications of 11743395-1?

Key specifications for 11743395-1: Overall Diameter: 0.437 INCHES NOMINAL IN; Inside Right Corner Chamfer Angle: 45.0 DEGREES NOMINAL; Hardness Rating: 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM; Material Document and Classification: ASTMA582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 11 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-019-4531 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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