Mount, Insulation, Muffler Shield2990-00-679-4663

NSN 2990-00-679-4663 · NIIN 006794663

FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories

Government record, cited

Also searched as 2990-00-679-4663 · 2990006794663 · NIIN 006794663 · 00-679-4663 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · 56B23284-7 · 56B23284-7 · 56B23284-7 · 56B23284-7

Nearby stock numbers ← 2990-00-679-4657 · 2990-00-679-5029 →

Features

Mount,insulation,muffler Shield — FSC 2990
General Characteristics Item Description: MATERIAL CARBON STEEL EXPANDED METAL; 10.875 IN. LG; 4.500 IN. W; 6.250 IN. H; WITH FOUR 0.312 IN. DIA UNTHREADED MOUNTING HOLES IN

Identification

NSN: 2990-00-679-4663
NIIN: 006794663
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
FSG: 29 — Engine Accessories

General Description

The Mount,insulation,muffler Shield, cataloged under National Stock Number 2990-00-679-4663, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	2990-00-679-4663
Item Name	Mount,insulation,muffler Shield
FSC / FSG	2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
Status	ACTIVE
General Characteristics Item Description	MATERIAL CARBON STEEL EXPANDED METAL; 10.875 IN. LG; 4.500 IN. W; 6.250 IN. H; WITH FOUR 0.312 IN. DIA UNTHREADED MOUNTING HOLES 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

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
56B23284-7	3/9 Design control — primary reference Gse Production and Support Llc Dba Gse Spares
56B23284-7	5/9 Secondary reference U.S. Government activity
56B23284-7	5/9 Secondary reference U.S. Government activity
56B23284-7	5/9 Secondary reference U.S. Government activity

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.

2990-00-001-0001

BLOWER ASSEMBLY

2990-00-001-1248

2990-00-001-1248 · Item name not on file

2990-00-001-1250

2990-00-001-1250 · Item name not on file

2990-00-001-2055

2990-00-001-2055 · Item name not on file

2990-00-001-3498

2990-00-001-3498 · Item name not on file

2990-00-001-3520

2990-00-001-3520 · Item name not on file

2990-00-001-3521

2990-00-001-3521 · Item name not on file

2990-00-001-3522

CAP ASSEMBLY,MUFFLE

Frequently Asked Questions

What is NSN 2990-00-679-4663?

NSN 2990-00-679-4663 is a Mount,insulation,muffler Shield, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What are the specifications of 2990-00-679-4663?

Key specifications for 2990-00-679-4663: General Characteristics Item Description: MATERIAL CARBON STEEL EXPANDED METAL; 10.875 IN. LG; 4.500 IN. W; 6.250 IN. H; WITH FOUR 0.312 IN. DIA UNTHREADED MOUNTING HOLES IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 2990-00-679-4663 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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