Hanger, Engine Exhaust System2990-01-322-0974

NSN 2990-01-322-0974 · NIIN 013220974 · Part number 1N4616

Caterpillar Inc Div Caterpillar Defense · FSC 2990 — Miscellaneous Engine Accessories, Nonaircraft · FSG 29 — Engine Accessories · CAGE 11083

Government record, cited

NSN 2990-01-322-0974 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-322-0974. Manufacturer of record part number: 1N4616.

Also searched as 2990-01-322-0974 · 2990013220974 · NIIN 013220974 · 01-322-0974 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 11083 · 1N4616

Nearby stock numbers ← 2990-01-322-0045 Pipe, Exhaust · 2990-01-322-0975 Hanger, Engine Exhaust System →

Features

Hanger,engine Exhaust System — FSC 2990
General Characteristics Item Description: WITH MTG HOLES; 197.500 IN. O/A H IN
1 manufacturer part number on file
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense

Identification

NSN: 2990-01-322-0974
NIIN: 013220974
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: 1N4616
Manufacturer: Caterpillar Inc Div Caterpillar Defense

General Description

The Hanger,engine Exhaust System, cataloged under National Stock Number 2990-01-322-0974, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	2990-01-322-0974
Primary Part Number	1N4616
Item Name	Hanger,engine Exhaust System
FSC / FSG	2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
Manufacturer	Caterpillar Inc Div Caterpillar Defense
Status	ACTIVE
General Characteristics Item Description	WITH MTG HOLES; 197.500 IN. O/A H 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

Part Number	Manufacturer
1N4616 PRIMARY	Caterpillar Inc Div Caterpillar Defense (USA)

Frequently Asked Questions

What is NSN 2990-01-322-0974?

NSN 2990-01-322-0974 is a Hanger,engine Exhaust System, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-01-322-0974?

NSN 2990-01-322-0974 has 1 manufacturer part number on file: 1N4616 (Caterpillar Inc Div Caterpillar Defense).

What are the specifications of 1N4616?

Key specifications for 1N4616: General Characteristics Item Description: WITH MTG HOLES; 197.500 IN. O/A H IN; End Item Identification: 3805-01-260-5163. 1 specification is documented in the U.S. Government catalog.

Is NSN 2990-01-322-0974 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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