Washer, Flat5310-01-645-0721

NSN 5310-01-645-0721 · NIIN 016450721 · Part number 5252-N-196

Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 55566

Government record, cited

NSN 5310-01-645-0721 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-645-0721. Manufacturer of record part number: 5252-N-196.

Also searched as 5310-01-645-0721 · 5310016450721 · NIIN 016450721 · 01-645-0721 · FSC 5310 Nuts and Washers · CAGE 55566 · 5252-N-196

Nearby stock numbers ← 5310-01-645-0718 Washer Set, Spring Tension, Matche · 5310-01-645-0724 Washer, Flat →

5310-01-645-0721 — Nuts and Washers

Features

Washer,flat — FSC 5310
Overall Diameter: 0.531 INCHES NOMINAL IN
Cross-Sectional Shape Style: BLANK RECTANGULAR
Peripheral Shape Style: ROUND
Material: PLASTIC NYLON OVERALL
Center Hole Shape Style: ROUND
Hole Diameter: 0.196 INCHES MINIMUM AND 0.206 INCHES MAXIMUM IN
Thickness: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN

Identification

NSN: 5310-01-645-0721
NIIN: 016450721
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 5252-N-196
Manufacturer: Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc

General Description

The Washer,flat, cataloged under National Stock Number 5310-01-645-0721, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc. Government technical data includes 7 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	5310-01-645-0721
Primary Part Number	5252-N-196
Item Name	Washer,flat
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc
Status	ACTIVE
Overall Diameter	0.531 INCHES NOMINAL IN
Cross-Sectional Shape Style	BLANK RECTANGULAR
Peripheral Shape Style	ROUND
Material	PLASTIC NYLON OVERALL
Center Hole Shape Style	ROUND
Hole Diameter	0.196 INCHES MINIMUM AND 0.206 INCHES MAXIMUM IN
Thickness	0.120 INCHES MINIMUM AND 0.130 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
5252-N-196 PRIMARY	Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc (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 5310-01-645-0721?

NSN 5310-01-645-0721 is a Washer,flat, manufactured by Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-645-0721?

NSN 5310-01-645-0721 has 1 manufacturer part number on file: 5252-N-196 (Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc).

What are the specifications of 5252-N-196?

Key specifications for 5252-N-196: Overall Diameter: 0.531 INCHES NOMINAL IN; Cross-Sectional Shape Style: BLANK RECTANGULAR; Peripheral Shape Style: ROUND; Part Name Assigned by Controlling Agency: FLAT WASHER. 7 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-645-0721 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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