PartsTable TECHNICAL DATA SHEET

NSN 2990-01-180-2988Government record, cited

Muffler and Inlet Pipe, Left Hand2990-01-180-2988

NSN 2990-01-180-2988 · NIIN 011802988 · Part number 22329 AND 42700

Walker Mfg Co · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 79260

Government record, cited

NSN 2990-01-180-2988 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-180-2988. Manufacturer of record part number: 22329 AND 42700.

Also searched as 2990-01-180-2988 · 2990011802988 · NIIN 011802988 · 01-180-2988 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 79260 · 22329 AND 42700 · 14067429 · 14067429

Nearby stock numbers ← 2990-01-180-2936 · 2990-01-180-2989 Push Rod →

Features

Muffler and Inlet Pipe,left Hand — FSC 2990
1 manufacturer part number on file
Manufacturer of record: Walker Mfg Co

Identification

NSN: 2990-01-180-2988
NIIN: 011802988
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: 22329 AND 42700
Manufacturer: Walker Mfg Co

General Description

The Muffler and Inlet Pipe,left Hand, cataloged under National Stock Number 2990-01-180-2988, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Walker Mfg Co. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Muffler and Inlet Pipe,left Hand
FSC / FSG	2990 — Miscellaneous Engine Accessories, Nonaircraft (FSG 29)
Manufacturers	Walker Mfg Co (CAGE 79260)

Technical Specifications

Parameter	Value
NSN	2990-01-180-2988
Primary Part Number	22329 AND 42700
Item Name	Muffler and Inlet Pipe,left Hand
FSC / FSG	2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
Manufacturer	Walker Mfg Co
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
22329 AND 42700 PRIMARY	Walker Mfg Co (USA)

Reference documents

Reference	Meaning
14067429	5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept
14067429	3/9 Design control — primary reference General Motors Llc Dba General Motors 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.

2990-00-001-0001

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 2990-01-180-2988?

NSN 2990-01-180-2988 is a Muffler and Inlet Pipe,left Hand, manufactured by Walker Mfg Co, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-01-180-2988?

NSN 2990-01-180-2988 has 1 manufacturer part number on file: 22329 AND 42700 (Walker Mfg Co).

Is NSN 2990-01-180-2988 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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