NSN 5340-01-678-8540 · NIIN 016788540 · Part number 12667021
General Motors Corp · FSC 5340 — Hardware, Commercial · FSG 53 — Hardware and Abrasives · CAGE 24617
Government record, cited
NSN 5340-01-678-8540 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-678-8540. Manufacturer of record part number: 12667021.
The Cover,access, cataloged under National Stock Number 5340-01-678-8540, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is General Motors Corp. The record lists 2 manufacturer part numbers 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. Unit of issue: EA.
Technical Specifications
Parameter
Value
NSN
5340-01-678-8540
Primary Part Number
12667021
Item Name
Cover,access
FSC / FSG
5340 / 53 — Hardware, Commercial
Manufacturer
General Motors Corp
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code
X
Unit of Issue
EA
⇄Related Items1
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
2510-01-709-041712667021POSSIBLE MATCH
FRAME SECTION,STRUCTURAL,VEHICUL
Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm
NSN 5340-01-678-8540 is a Cover,access, manufactured by General Motors Corp, classified under FSC 5340, Hardware, Commercial. Status: active.
What part numbers are listed for NSN 5340-01-678-8540?
NSN 5340-01-678-8540 has 2 manufacturer part numbers on file: 12667021 (General Motors Corp), 4385623 (Oshkosh Defense Llc).
What NSN replaces 5340-01-678-8540?
1 possible match (shared part number, not a government interchangeability claim): 2510-01-709-0417. Verify interchangeability with system specifications before substitution.
What are the specifications of 12667021?
Key specifications for 12667021: End Item Identification: NSN 2320-016525208. 0 specifications are documented in the U.S. Government catalog.
Is NSN 5340-01-678-8540 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). 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.