Hose, Air Duct4720-01-669-5706

NSN 4720-01-669-5706 · NIIN 016695706 · Part number MTR1021-0004

Flexfab Llc · FSC 4720 — Hose and Flexible Tubing · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 16632

Government record, cited

NSN 4720-01-669-5706 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-669-5706. Manufacturer of record part number: MTR1021-0004.

Also searched as 4720-01-669-5706 · 4720016695706 · NIIN 016695706 · 01-669-5706 · FSC 4720 Hose and Flexible Tubing · CAGE 16632 · MTR1021-0004

Nearby stock numbers ← 4720-01-669-5660 Hose, Preformed · 4720-01-669-5721 Hose, Preformed →

4720-01-669-5706 — Hose and Flexible Tubing

Features

Hose,air Duct — FSC 4720
1 manufacturer part number on file
Manufacturer of record: Flexfab Llc

Identification

NSN: 4720-01-669-5706
NIIN: 016695706
FSC: 4720 — Hose and Flexible Tubing
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: MTR1021-0004
Manufacturer: Flexfab Llc

General Description

The Hose,air Duct, cataloged under National Stock Number 4720-01-669-5706, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Flexfab Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Catalog Facts

Item Name	Hose,air Duct
FSC / FSG	4720 — Hose and Flexible Tubing (FSG 47)
Manufacturers	Flexfab Llc (CAGE 16632)

Technical Specifications

Parameter	Value
NSN	4720-01-669-5706
Primary Part Number	MTR1021-0004
Item Name	Hose,air Duct
FSC / FSG	4720 / 47 — Hose and Flexible Tubing
Manufacturer	Flexfab Llc
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
MTR1021-0004 PRIMARY	Flexfab Llc (USA)

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 4720-01-669-5706?

NSN 4720-01-669-5706 is a Hose,air Duct, manufactured by Flexfab Llc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.

What part numbers are listed for NSN 4720-01-669-5706?

NSN 4720-01-669-5706 has 1 manufacturer part number on file: MTR1021-0004 (Flexfab Llc).

Is NSN 4720-01-669-5706 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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