Washer, Flat5310-01-391-2216

NSN 5310-01-391-2216 · NIIN 013912216

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

Government record, cited

Also searched as 5310-01-391-2216 · 5310013912216 · NIIN 013912216 · 01-391-2216 · FSC 5310 Nuts and Washers · 7-950-060141 · 7-950-060141

Nearby stock numbers ← 5310-01-391-2183 Washer, Flat · 5310-01-391-2355 Nut, Plain, Plate →

5310-01-391-2216 — Nuts and Washers

Features

Washer,flat — FSC 5310
Overall Diameter: 0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
Cross-Sectional Shape Style: RECTANGULAR
Surface Treatment: CADMIUM OR ZINC OVERALL
Peripheral Shape Style: ROUND
Material: STEEL OVERALL
Center Hole Shape Style: ROUND

Identification

NSN: 5310-01-391-2216
NIIN: 013912216
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives

General Description

The Washer,flat, cataloged under National Stock Number 5310-01-391-2216, 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9 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	5310-01-391-2216
Item Name	Washer,flat
FSC / FSG	5310 / 53 — Nuts and Washers
Status	ACTIVE
Overall Diameter	0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
Hardness Rating	45.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
Cross-Sectional Shape Style	RECTANGULAR
Surface Treatment	CADMIUM OR ZINC OVERALL
Peripheral Shape Style	ROUND
Material	STEEL OVERALL
Center Hole Shape Style	ROUND
Hole Diameter	0.151 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
Thickness	0.036 INCHES MINIMUM AND 0.065 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
7-950-060141	5/9 Secondary reference Minnpar, Llc Dba Minnpar
7-950-060141	3/9 Design control — primary reference Grove U.s. Llc Dba Grove Us Llc

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 5310-01-391-2216?

NSN 5310-01-391-2216 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.

What are the specifications of 5310-01-391-2216?

Key specifications for 5310-01-391-2216: Overall Diameter: 0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN; Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: CADMIUM OR ZINC OVERALL. 9 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-391-2216 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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