PartsTable TECHNICAL DATA SHEET

NSN 2990-01-677-7840Government record, cited

Insulation, Vehicular2990-01-677-7840

NSN 2990-01-677-7840 · NIIN 016777840 · Part number 12680268

General Motors Corp · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 24617

Government record, cited

NSN 2990-01-677-7840 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-677-7840. Manufacturer of record part number: 12680268.

Also searched as 2990-01-677-7840 · 2990016777840 · NIIN 016777840 · 01-677-7840 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 24617 · 12680268 · 4393859

Nearby stock numbers ← 2990-01-677-7839 Guard, Muffler-Exhaust Pipe, Nonai · 2990-01-677-7877 Tank, Oil, Lubricant System →

Features

Insulation,vehicular — FSC 2990
1 manufacturer part number on file
Manufacturer of record: General Motors Corp

Identification

NSN: 2990-01-677-7840
NIIN: 016777840
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: 12680268
Manufacturer: General Motors Corp

General Description

The Insulation,vehicular, cataloged under National Stock Number 2990-01-677-7840, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is General Motors Corp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Insulation,vehicular
FSC / FSG	2990 — Miscellaneous Engine Accessories, Nonaircraft (FSG 29)
Manufacturers	General Motors Corp (CAGE 24617)

Technical Specifications

Parameter	Value
NSN	2990-01-677-7840
Primary Part Number	12680268
Item Name	Insulation,vehicular
FSC / FSG	2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
Manufacturer	General Motors 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)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
12680268 PRIMARY	General Motors Corp (USA)

Reference documents

Reference	Meaning
4393859	7/2 Vendor item drawing reference Oshkosh Defense Llc

No interchangeability data on file.

Other items in FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

2990-00-096-8607

CONTROL ASSEMBLY,PUSH-PULL

2990-00-390-3445

CRANK,HAND,VEHICULAR

2990-00-459-7255

MUFFLER,EXHAUST

2990-00-459-7255

MUFFLER,EXHAUST

2990-00-536-2962

BLOCK,ADJUSTING SCREW

2990-00-903-8226

MUFFLER,EXHAUST

2990-01-151-5443

CONNECTOR,EXHAUST PIPE

2990-01-151-5443

CONNECTOR,EXHAUST PIPE

Frequently Asked Questions

What is NSN 2990-01-677-7840?

NSN 2990-01-677-7840 is a Insulation,vehicular, manufactured by General Motors Corp, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-01-677-7840?

NSN 2990-01-677-7840 has 1 manufacturer part number on file: 12680268 (General Motors Corp).

Is NSN 2990-01-677-7840 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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