Washer, Flat5310-01-278-8438

NSN 5310-01-278-8438 · NIIN 012788438 · Part number 25636-001

Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 74025

Government record, cited

NSN 5310-01-278-8438 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-278-8438. Manufacturer of record part number: 25636-001.

Also searched as 5310-01-278-8438 · 5310012788438 · NIIN 012788438 · 01-278-8438 · FSC 5310 Nuts and Washers · CAGE 74025 · 25636-001

Nearby stock numbers ← 5310-01-278-8437 Washer, Flat · 5310-01-278-8442 →

5310-01-278-8438 — Nuts and Washers

Features

Washer,flat — FSC 5310
1 manufacturer part number on file
Manufacturer of record: Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company

Identification

NSN: 5310-01-278-8438
NIIN: 012788438
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 25636-001
Manufacturer: Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company

General Description

The Washer,flat, cataloged under National Stock Number 5310-01-278-8438, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts

Item Name	Washer,flat
FSC / FSG	5310 — Nuts and Washers (FSG 53)
Manufacturers	Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company (CAGE 74025)

Technical Specifications

Parameter	Value
NSN	5310-01-278-8438
Primary Part Number	25636-001
Item Name	Washer,flat
FSC / FSG	5310 / 53 — Nuts and Washers
Manufacturer	Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company
Status	ACTIVE

Lifecycle & Compliance

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

⇄ Related Items 1

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

1680-01-622-759025636-001 POSSIBLE MATCH

ACCESSORY KIT

Possible match (shared part number)Inter-Coastal Electronics, Llc

Cross-Reference Index

Part Number	Manufacturer
25636-001 PRIMARY	Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company (USA)

Related Parts

1680-01-622-7590POSSIBLE MATCH

ACCESSORY KIT

25636-001

Frequently Asked Questions

What is NSN 5310-01-278-8438?

NSN 5310-01-278-8438 is a Washer,flat, manufactured by Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-278-8438?

NSN 5310-01-278-8438 has 1 manufacturer part number on file: 25636-001 (Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company).

What NSN replaces 5310-01-278-8438?

1 possible match (shared part number, not a government interchangeability claim): 1680-01-622-7590. Verify interchangeability with system specifications before substitution.

Is NSN 5310-01-278-8438 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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