Segment, Silencer in2990-01-449-2747

NSN 2990-01-449-2747 · NIIN 014492747 · Part number 116-5048

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

Government record, cited

NSN 2990-01-449-2747 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-449-2747. Manufacturer of record part number: 116-5048.

Also searched as 2990-01-449-2747 · 2990014492747 · NIIN 014492747 · 01-449-2747 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft · CAGE 11083 · 116-5048 · 11-5048 · 129-6726 IT 3 · 246-3234

Nearby stock numbers ← 2990-01-449-2391 Cable Assembly, Control · 2990-01-449-2751 Housing Assembly, Go →

Features

Segment,silencer in — FSC 2990
3 manufacturer part numbers on file
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense

Identification

NSN: 2990-01-449-2747
NIIN: 014492747
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
FSG: 29 — Engine Accessories
Primary part number: 116-5048
Manufacturer: Caterpillar Inc Div Caterpillar Defense

General Description

The Segment,silencer in, cataloged under National Stock Number 2990-01-449-2747, 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. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	Segment,silencer in
FSC / FSG	2990 — Miscellaneous Engine Accessories, Nonaircraft (FSG 29)
Manufacturers	Caterpillar Inc Div Caterpillar Defense (CAGE 11083)

Technical Specifications

Parameter	Value
NSN	2990-01-449-2747
Primary Part Number	116-5048
Item Name	Segment,silencer in
FSC / FSG	2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
Manufacturer	Caterpillar Inc Div Caterpillar Defense
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

Cross-Reference Index

Part Number	Manufacturer
116-5048 PRIMARY	Caterpillar Inc Div Caterpillar Defense (USA)
129-6726 IT 3	Caterpillar Inc Div Caterpillar Defense (USA)
246-3234 PRIMARY	Caterpillar Inc Div Caterpillar Defense (USA)

Reference documents

Reference	Meaning
11-5048	C/1 Advisory reference — outside the item-of-supply concept Caterpillar Inc Div Caterpillar Defense

Frequently Asked Questions

What is NSN 2990-01-449-2747?

NSN 2990-01-449-2747 is a Segment,silencer in, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What part numbers are listed for NSN 2990-01-449-2747?

NSN 2990-01-449-2747 has 3 manufacturer part numbers on file: 116-5048 (Caterpillar Inc Div Caterpillar Defense), 129-6726 IT 3 (Caterpillar Inc Div Caterpillar Defense), 246-3234 (Caterpillar Inc Div Caterpillar Defense).

Is NSN 2990-01-449-2747 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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