Washer, Flat5310-01-331-7605

NSN 5310-01-331-7605 · NIIN 013317605

FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives

Government record, cited

Also searched as 5310-01-331-7605 · 5310013317605 · NIIN 013317605 · 01-331-7605 · FSC 5310 Nuts and Washers · MS14183-6 · MS14183-6 · NASM14183

Nearby stock numbers ← 5310-01-331-7604 · 5310-01-331-7606 →

5310-01-331-7605 — Nuts and Washers

Features

Washer,flat — FSC 5310
Overall Diameter: 0.691 INCHES MINIMUM AND 0.791 INCHES MAXIMUM IN
Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
Cross-Sectional Shape Style: RECTANGULAR
Surface Treatment: PASSIVATE OVERALL
Peripheral Shape Style: ROUND
Material: NICKEL ALLOY 718 OVERALL
Center Hole Shape Style: ROUND

Identification

NSN: 5310-01-331-7605
NIIN: 013317605
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives

General Description

The Washer,flat, cataloged under National Stock Number 5310-01-331-7605, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5310-01-331-7605
Item Name	Washer,flat
FSC / FSG	5310 / 53 — Nuts and Washers
Status	ACTIVE
Overall Diameter	0.691 INCHES MINIMUM AND 0.791 INCHES MAXIMUM IN
Hardness Rating	36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
Cross-Sectional Shape Style	RECTANGULAR
Surface Treatment	PASSIVATE OVERALL
Peripheral Shape Style	ROUND
Material	NICKEL ALLOY 718 OVERALL
Center Hole Shape Style	ROUND
Hole Diameter	0.375 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
Thickness	0.071 INCHES MINIMUM AND 0.085 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

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
MS14183-6	5/9 Secondary reference U.S. Government activity
MS14183-6	3/2 Design control — primary reference U.S. Government activity
NASM14183	3/1 Design control — primary reference U.S. Government activity

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 5310-01-331-7605?

NSN 5310-01-331-7605 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.

What are the specifications of 5310-01-331-7605?

Key specifications for 5310-01-331-7605: Overall Diameter: 0.691 INCHES MINIMUM AND 0.791 INCHES MAXIMUM IN; Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: PASSIVATE OVERALL. 9 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-331-7605 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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