Retainer, Muffler Inlet2990-00-161-4965

NSN 2990-00-161-4965 · NIIN 001614965

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

Government record, cited

Also searched as 2990-00-161-4965 · 2990001614965 · NIIN 001614965 · 00-161-4965 · FSC 2990 Miscellaneous Engine Accessories, Nonaircraft

Nearby stock numbers ← 2990-00-161-0401 Pipe, Exhaust · 2990-00-161-5836 →

Features

Retainer,muffler Inlet — FSC 2990
General Characteristics Item Description: TUBING CRES MIL-T-8606 COMPOSITION 321OR 347 TYPE 1 OR MIL-T-8808 COMPOSITION OPTIONAL TYPE 1 OR AMS 5645GRADE 321,1.880 IN. O/A LG,4.514 IN. MIN 4.525 IN. MAX OUTSIDE DIA,3.865 IN. MIN 3.966 IN. MAX INSIDE DIA IN

Identification

NSN: 2990-00-161-4965
NIIN: 001614965
FSC: 2990 — Miscellaneous Engine Accessories, Nonaircraft
FSG: 29 — Engine Accessories

General Description

The Retainer,muffler Inlet, cataloged under National Stock Number 2990-00-161-4965, 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1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	2990-00-161-4965
Item Name	Retainer,muffler Inlet
FSC / FSG	2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft
Status	ACTIVE
General Characteristics Item Description	TUBING CRES MIL-T-8606 COMPOSITION 321OR 347 TYPE 1 OR MIL-T-8808 COMPOSITION OPTIONAL TYPE 1 OR AMS 5645GRADE 321,1.880 IN. O/A LG,4.514 IN. MIN 4.525 IN. MAX OUTSIDE DIA,3.865 IN. MIN 3.966 IN. MAX INSIDE DIA 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

⇄ Related Items 1

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

1560-01-648-036025-8805-9 POSSIBLE MATCH

PANEL,STRUCTURAL,AIRCRAFT

Possible match (shared part number)The Boeing Company Div Defense

Cross-Reference Index

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

Reference documents

Reference	Meaning
2588059	3/2 Design control — primary reference U.S. Government activity

Related Parts

1560-01-648-0360POSSIBLE MATCH

PANEL,STRUCTURAL,AIRCRAFT

25-8805-9

Frequently Asked Questions

What is NSN 2990-00-161-4965?

NSN 2990-00-161-4965 is a Retainer,muffler Inlet, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.

What NSN replaces 2990-00-161-4965?

1 possible match (shared part number, not a government interchangeability claim): 1560-01-648-0360. Verify interchangeability with system specifications before substitution.

What are the specifications of 2990-00-161-4965?

Key specifications for 2990-00-161-4965: General Characteristics Item Description: TUBING CRES MIL-T-8606 COMPOSITION 321OR 347 TYPE 1 OR MIL-T-8808 COMPOSITION OPTIONAL TYPE 1 OR AMS 5645GRADE 321,1.880 IN. O/A LG,4.514 IN. MIN 4.525 IN. MAX OUTSIDE DIA,3.865 IN. MIN 3.966 IN. MAX INSIDE DIA IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 2990-00-161-4965 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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