Duct, Pipe, Air Conditioning4720-00-705-3138

NSN 4720-00-705-3138 · NIIN 007053138

FSC 4720 — Hose and Flexible Tubing · FSG 47 — Pipe, Tubing, Hose, and Fittings

Government record, cited

Also searched as 4720-00-705-3138 · 4720007053138 · NIIN 007053138 · 00-705-3138 · FSC 4720 Hose and Flexible Tubing · 545-8877-003 · 545-8877-003

Nearby stock numbers ← 4720-00-705-2325 · 4720-00-705-3453 →

4720-00-705-3138 — Hose and Flexible Tubing

Features

Duct,pipe,air Conditioning — FSC 4720
General Characteristics Item Description: ALUMINUM ALLOY;DOUBLE AIR DUCT;1.313 IN. DIA 1ST AIR DUCT;1.187 IN. DIA 2ND AIR DUCT;ATTACHED TO 3.437 IN. QUARE BOTTOMW/FOUR 0.281 IN. HOLES;3.187 IN. O/A H IN

Identification

NSN: 4720-00-705-3138
NIIN: 007053138
FSC: 4720 — Hose and Flexible Tubing
FSG: 47 — Pipe, Tubing, Hose, and Fittings

General Description

The Duct,pipe,air Conditioning, cataloged under National Stock Number 4720-00-705-3138, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	4720-00-705-3138
Item Name	Duct,pipe,air Conditioning
FSC / FSG	4720 / 47 — Hose and Flexible Tubing
Status	ACTIVE
General Characteristics Item Description	ALUMINUM ALLOY;DOUBLE AIR DUCT;1.313 IN. DIA 1ST AIR DUCT;1.187 IN. DIA 2ND AIR DUCT;ATTACHED TO 3.437 IN. QUARE BOTTOMW/FOUR 0.281 IN. HOLES;3.187 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

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

Reference documents

Reference	Meaning
545-8877-003	5/9 Secondary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
545-8877-003	3/2 Design control — primary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 4720 — Hose and Flexible Tubing

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4720-00-000-0080

HOSE ASSEMBLY,NONMETALLIC

4720-00-000-0081

4720-00-000-0081 · Item name not on file

4720-00-000-0084

HOSE,PREFORMED

4720-00-000-0724

4720-00-000-0724 · Item name not on file

4720-00-001-0014

HOSE ASSEMBLY,NONMETALLIC

4720-00-001-0015

4720-00-001-0015 · Item name not on file

4720-00-001-0023

HOSE ASSEMBLY,NONMETALLIC

4720-00-001-0025

4720-00-001-0025 · Item name not on file

Frequently Asked Questions

What is NSN 4720-00-705-3138?

NSN 4720-00-705-3138 is a Duct,pipe,air Conditioning, classified under FSC 4720, Hose and Flexible Tubing. Status: active.

What are the specifications of 4720-00-705-3138?

Key specifications for 4720-00-705-3138: General Characteristics Item Description: ALUMINUM ALLOY;DOUBLE AIR DUCT;1.313 IN. DIA 1ST AIR DUCT;1.187 IN. DIA 2ND AIR DUCT;ATTACHED TO 3.437 IN. QUARE BOTTOMW/FOUR 0.281 IN. HOLES;3.187 IN. O/A H IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 4720-00-705-3138 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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