PartsTable TECHNICAL DATA SHEET

NSN 5310-01-650-7635Government record, cited

Washer, Flat5310-01-650-7635

NSN 5310-01-650-7635 · NIIN 016507635 · Part number 12D1001-50

Mil Spec Inc Dba Mil Spec, Inc · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 57368

Government record, cited

NSN 5310-01-650-7635 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-650-7635. Manufacturer of record part number: 12D1001-50.

Also searched as 5310-01-650-7635 · 5310016507635 · NIIN 016507635 · 01-650-7635 · FSC 5310 Nuts and Washers · CAGE 57368 · 12D1001-50

Nearby stock numbers ← 5310-01-650-7633 Nut, Self-Locking, Hexagon · 5310-01-650-7642 Nut, Self-Locking, Hexagon →

5310-01-650-7635 — Nuts and Washers

Features

Washer,flat — FSC 5310
Overall Diameter: 0.855 INCHES NOMINAL IN
Material Document and Classification: STM A684 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Material: STEEL OVERALL
Hole Diameter: 0.650 INCHES NOMINAL IN
Thickness: 0.010 INCHES NOMINAL IN
1 manufacturer part number on file
Manufacturer of record: Mil Spec Inc Dba Mil Spec, Inc

Identification

NSN: 5310-01-650-7635
NIIN: 016507635
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 12D1001-50
Manufacturer: Mil Spec Inc Dba Mil Spec, Inc

General Description

The Washer,flat, cataloged under National Stock Number 5310-01-650-7635, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mil Spec Inc Dba Mil Spec, Inc. Government technical data includes 5 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	5310-01-650-7635
Primary Part Number	12D1001-50
Item Name	Washer,flat
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Mil Spec Inc Dba Mil Spec, Inc
Status	ACTIVE
Overall Diameter	0.855 INCHES NOMINAL IN
Material Document and Classification	STM A684 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Material	STEEL OVERALL
Hole Diameter	0.650 INCHES NOMINAL IN
Thickness	0.010 INCHES NOMINAL 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
12D1001-50 PRIMARY	Mil Spec Inc Dba Mil Spec, Inc (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 5310-01-650-7635?

NSN 5310-01-650-7635 is a Washer,flat, manufactured by Mil Spec Inc Dba Mil Spec, Inc, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-650-7635?

NSN 5310-01-650-7635 has 1 manufacturer part number on file: 12D1001-50 (Mil Spec Inc Dba Mil Spec, Inc).

What are the specifications of 12D1001-50?

Key specifications for 12D1001-50: Overall Diameter: 0.855 INCHES NOMINAL IN; Material Document and Classification: STM A684 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Material: STEEL OVERALL; Hole Diameter: 0.650 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-650-7635 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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