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NSN 4720-01-347-7420Government record, cited
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Hose, Air Duct4720-01-347-7420

NSN 4720-01-347-7420 · NIIN 013477420
FSC 4720 — Hose and Flexible Tubing · FSG 47 — Pipe, Tubing, Hose, and Fittings
Government record, cited
Also searched as  4720-01-347-7420 · 4720013477420 · NIIN 013477420 · 01-347-7420 · FSC 4720 Hose and Flexible Tubing · NAS1369 · NAS1376A06CB032 · NAS1370 THRU 1379
Nearby stock numbers  ·
END VIEW L 11.000 INCHES NOMINAL OVERALL IN Wall: 0.050 INCHES NOMINAL IN PIPE CROSS SECTION
4720-01-347-7420 — Hose and Flexible Tubing
Features
  • Hose,air Duct — FSC 4720
  • Measuring Method and Length: 11.000 INCHES NOMINAL OVERALL IN
  • Minimum Inside Bending Radius: 1.500 INCHES IN
  • Connection Style: ROUND BOTH ENDS
  • Connection Type: SOFT BOTH ENDS
  • Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED
  • Cross-Sectional Shape Style: ROUND
  • Wall Thickness: 0.050 INCHES NOMINAL IN
Identification
  • NSN: 4720-01-347-7420
  • NIIN: 013477420
  • FSC: 4720 — Hose and Flexible Tubing
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description

The Hose,air Duct, cataloged under National Stock Number 4720-01-347-7420, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4720-01-347-7420
Item NameHose,air Duct
FSC / FSG4720 / 47 — Hose and Flexible Tubing
StatusACTIVE
Measuring Method and Length11.000 INCHES NOMINAL OVERALL IN
Minimum Inside Bending Radius1.500 INCHES IN
Connection StyleROUND BOTH ENDS
Connection TypeSOFT BOTH ENDS
Style DesignatorHELICALLY WOUND CONTINOUS WIRE SUPPORTED
Cross-Sectional Shape StyleROUND
Wall Thickness0.050 INCHES NOMINAL IN
Operating Pressure4.5 POUNDS PER SQUARE INCH (PSI) NOMINAL EXTERNAL LBS
Inside Diameter1.500 INCHES NOMINAL FIRST END IN
End Overall Length1.500 INCHES NOMINAL BOTH ENDS IN
End Inside Diameter1.500 INCHES NOMINAL BOTH ENDS IN
MaterialSTEEL REINFORCING WIRE
MaterialFIBERGLASS REINFORCING CORD
MaterialRUBBER CHLOROPRENE CLASS CR AND FIBERGLASS FIRST PLY
MaterialRUBBER CHLOROPRENE CLASS CR AND FIBERGLASS SECOND PLY
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4720-01-414-7857NAS1376A06CB026 POSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4720-01-414-7860NAS1376A04CB038 POSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4720-01-414-7861NAS1375A12SC052 POSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4720-01-469-0446NAS1376A16SA092 POSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4720-01-533-2640NAS1376A16CB087 POSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4720-01-665-2869NAS1375A24CB014 POSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
ReferenceMeaning
NAS1369 3/1 Design control — primary reference
U.S. Government activity
NAS1376A06CB032 3/2 Design control — primary reference
U.S. Government activity
NAS1370 THRU 1379 D/9 Drawing number reference only
U.S. Government activity
Related Parts
4720-01-414-7857POSSIBLE MATCH
HOSE,AIR DUCT
NAS1376A06CB026
4720-01-414-7860POSSIBLE MATCH
HOSE,AIR DUCT
NAS1376A04CB038
4720-01-414-7861POSSIBLE MATCH
HOSE,AIR DUCT
NAS1375A12SC052
4720-01-469-0446POSSIBLE MATCH
HOSE,AIR DUCT
NAS1376A16SA092
4720-01-533-2640POSSIBLE MATCH
HOSE,AIR DUCT
NAS1376A16CB087
4720-01-665-2869POSSIBLE MATCH
HOSE,AIR DUCT
NAS1375A24CB014

Frequently Asked Questions

What is NSN 4720-01-347-7420?

NSN 4720-01-347-7420 is a Hose,air Duct, classified under FSC 4720, Hose and Flexible Tubing. Status: active.

What NSN replaces 4720-01-347-7420?

6 possible matches (shared part number, not a government interchangeability claim): 4720-01-414-7857, 4720-01-414-7860, 4720-01-414-7861. Verify interchangeability with system specifications before substitution.

What are the specifications of 4720-01-347-7420?

Key specifications for 4720-01-347-7420: Measuring Method and Length: 11.000 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 1.500 INCHES IN; Connection Style: ROUND BOTH ENDS; Connection Type: SOFT BOTH ENDS. 15 specifications are documented in the U.S. Government catalog.

Is NSN 4720-01-347-7420 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.

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✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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