Measuring Method and Length: 7.750 INCHES NOMINAL OVERALL IN
Minimum Inside Bending Radius: 0.750 INCHES IN
Connection Style: ROUND FIRST END
Connection Type: SOFT FIRST END
Cross-Sectional Shape Style: ROUND
Wall Thickness: 0.020 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
Identification
NSN: 4720-01-165-8017
NIIN: 011658017
FSC: 4720 — Hose and Flexible Tubing
FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description
The Hose,air Duct, cataloged under National Stock Number 4720-01-165-8017, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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
4720-01-165-8017
Item Name
Hose,air Duct
FSC / FSG
4720 / 47 — Hose and Flexible Tubing
Status
ACTIVE
Hose Weight
1.365 OUNCES PER LINEAR FOOT OZ
Measuring Method and Length
7.750 INCHES NOMINAL OVERALL IN
Minimum Inside Bending Radius
0.750 INCHES IN
Connection Style
ROUND FIRST END
Connection Type
SOFT FIRST END
Cross-Sectional Shape Style
ROUND
Wall Thickness
0.020 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
Operating Pressure
6.0 POUNDS PER SQUARE INCH (PSI) NOMINAL EXTERNAL LBS
Inside Diameter
0.750 INCHES NOMINAL FIRST END IN
End Overall Length
1.000 INCHES NOMINAL FIRST END IN
End Inside Diameter
0.750 INCHES NOMINAL FIRST END IN
Material
PLASTIC POLYAMIDE NYLON AND RUBBER SILICONE CLASS Q FIRST PLY
Material
PLASTIC POLYAMIDE NYLON SECOND PLY
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 Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4720-01-165-8018C9601-3-032SPOSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
4720-01-166-6217713426-.75-24-4POSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)Arrowhead Products Corp
4720-01-168-7547713426-75-062-4POSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)Arrowhead Products Corp
4720-01-169-1960713426-1.00-031-4POSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)Arrowhead Products Corp
4720-01-169-3745713426-1.00-041-4POSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)Arrowhead Products Corp
4720-01-180-0941713426-0.75-020-6POSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)Arrowhead Products Corp
4720-01-181-6690713426-1.00-017-4POSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)Arrowhead Products Corp
4720-01-279-3056C9601-8-040POSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
4720-01-279-3057713426-1.50-22-4POSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)Arrowhead Products Corp
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
4720PL0887447
6/9Informative reference only
Jednolity Indeks Materialowy - Uniform Material Index
713426-75-031-4
3/9Design control — primary reference
Arrowhead Products Corp
C9601
7/1Vendor item drawing reference
U.S. Government activity
C9601-3-031S
3/2Design control — primary reference
U.S. Government activity
Related Parts
4720-01-165-8018POSSIBLE MATCH
HOSE,AIR DUCT
C9601-3-032S
4720-01-166-6217POSSIBLE MATCH
HOSE,AIR DUCT
713426-.75-24-4
4720-01-168-7547POSSIBLE MATCH
HOSE,AIR DUCT
713426-75-062-4
4720-01-169-1960POSSIBLE MATCH
HOSE,AIR DUCT
713426-1.00-031-4
4720-01-169-3745POSSIBLE MATCH
HOSE,AIR DUCT
713426-1.00-041-4
4720-01-180-0941POSSIBLE MATCH
HOSE,AIR DUCT
713426-0.75-020-6
4720-01-181-6690POSSIBLE MATCH
HOSE,AIR DUCT
713426-1.00-017-4
4720-01-279-3056POSSIBLE MATCH
HOSE,AIR DUCT
C9601-8-040
4720-01-279-3057POSSIBLE MATCH
HOSE,AIR DUCT
713426-1.50-22-4
Frequently Asked Questions
What is NSN 4720-01-165-8017?
NSN 4720-01-165-8017 is a Hose,air Duct, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
What NSN replaces 4720-01-165-8017?
9 possible matches (shared part number, not a government interchangeability claim): 4720-01-165-8018, 4720-01-166-6217, 4720-01-168-7547. Verify interchangeability with system specifications before substitution.
What are the specifications of 4720-01-165-8017?
Key specifications for 4720-01-165-8017: Hose Weight: 1.365 OUNCES PER LINEAR FOOT OZ; Measuring Method and Length: 7.750 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 0.750 INCHES IN; Connection Style: ROUND FIRST END. 13 specifications are documented in the U.S. Government catalog.
Is NSN 4720-01-165-8017 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.