Washer, Flat5310-01-398-1133

NSN 5310-01-398-1133 · NIIN 013981133 · Part number 40A128303ADP1

Wellman Thermal Systems Corp · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 58823

Government record, cited

NSN 5310-01-398-1133 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-398-1133. Manufacturer of record part number: 40A128303ADP1.

Also searched as 5310-01-398-1133 · 5310013981133 · NIIN 013981133 · 01-398-1133 · FSC 5310 Nuts and Washers · CAGE 58823 · 40A128303ADP1

Nearby stock numbers ← 5310-01-398-1132 Nut, Plain, Hexagon · 5310-01-398-1272 Washer, Flat →

5310-01-398-1133 — Nuts and Washers

Features

Washer,flat — FSC 5310
1 manufacturer part number on file
Manufacturer of record: Wellman Thermal Systems Corp

Identification

NSN: 5310-01-398-1133
NIIN: 013981133
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 40A128303ADP1
Manufacturer: Wellman Thermal Systems Corp

General Description

The Washer,flat, cataloged under National Stock Number 5310-01-398-1133, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Wellman Thermal Systems Corp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Washer,flat
FSC / FSG	5310 — Nuts and Washers (FSG 53)
Manufacturers	Wellman Thermal Systems Corp (CAGE 58823)

Technical Specifications

Parameter	Value
NSN	5310-01-398-1133
Primary Part Number	40A128303ADP1
Item Name	Washer,flat
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Wellman Thermal Systems Corp
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

Cross-Reference Index

Part Number	Manufacturer
40A128303ADP1 PRIMARY	Wellman Thermal Systems Corp (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 5310-01-398-1133?

NSN 5310-01-398-1133 is a Washer,flat, manufactured by Wellman Thermal Systems Corp, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-398-1133?

NSN 5310-01-398-1133 has 1 manufacturer part number on file: 40A128303ADP1 (Wellman Thermal Systems Corp).

Is NSN 5310-01-398-1133 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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