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NSN 4720-01-668-3492Government record, cited

Hose, Air Duct4720-01-668-3492

NSN 4720-01-668-3492 · NIIN 016683492 · Part number 16-420-4000
Shields & Associates Inc · FSC 4720 — Hose and Flexible Tubing · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 51NP9
Government record, cited
NSN 4720-01-668-3492 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-668-3492. Manufacturer of record part number: 16-420-4000.
Also searched as  4720-01-668-3492 · 4720016683492 · NIIN 016683492 · 01-668-3492 · FSC 4720 Hose and Flexible Tubing · CAGE 51NP9 · 16-420-4000
Nearby stock numbers  ·
Features
  • Hose,air Duct — FSC 4720
  • Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED
  • Cross-Sectional Shape Style: ROUND
  • Outside Diameter: 104.8 MILLIMETERS NOMINAL BOTH ENDS MM
  • Inside Diameter: 4.0 INCHES NOMINAL BOTH ENDS IN
  • Material: PLASTIC POLYVINYL COVER
  • 1 manufacturer part number on file
  • Manufacturer of record: Shields & Associates Inc
Identification
  • NSN: 4720-01-668-3492
  • NIIN: 016683492
  • FSC: 4720 — Hose and Flexible Tubing
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: 16-420-4000
  • Manufacturer: Shields & Associates Inc
General Description

The Hose,air Duct, cataloged under National Stock Number 4720-01-668-3492, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Shields & Associates Inc. Government technical data includes 5 specifications, 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
ParameterValue
NSN4720-01-668-3492
Primary Part Number16-420-4000
Item NameHose,air Duct
FSC / FSG4720 / 47 — Hose and Flexible Tubing
ManufacturerShields & Associates Inc
StatusACTIVE
Style DesignatorHELICALLY WOUND CONTINOUS WIRE SUPPORTED
Cross-Sectional Shape StyleROUND
Outside Diameter104.8 MILLIMETERS NOMINAL BOTH ENDS MM
Inside Diameter4.0 INCHES NOMINAL BOTH ENDS IN
MaterialPLASTIC POLYVINYL COVER
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
16-420-4000 PRIMARY Shields & Associates Inc (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 4720-01-668-3492?

NSN 4720-01-668-3492 is a Hose,air Duct, manufactured by Shields & Associates Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.

What part numbers are listed for NSN 4720-01-668-3492?

NSN 4720-01-668-3492 has 1 manufacturer part number on file: 16-420-4000 (Shields & Associates Inc).

What are the specifications of 16-420-4000?

Key specifications for 16-420-4000: Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED; Cross-Sectional Shape Style: ROUND; Outside Diameter: 104.8 MILLIMETERS NOMINAL BOTH ENDS MM; Inside Diameter: 4.0 INCHES NOMINAL BOTH ENDS IN. 5 specifications are documented in the U.S. Government catalog.

Is NSN 4720-01-668-3492 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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