PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40700Hose Assembly,air Duct

Hdt Expeditionary Systems Inc · NSN 4720-01-539-7168 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-01-539-7168 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-539-7168. Primary manufacturer part number: 40700.
Features
  • Hose Assembly,air Duct — FSC 4720
  • 2 verified cross-references
  • Primary manufacturer: Hdt Expeditionary Systems Inc
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Hose Assembly,air Duct, cataloged under National Stock Number 4720-01-539-7168, is classified within Federal Supply Class 4720 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Hdt Expeditionary Systems Inc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameHose Assembly,air Duct
FSC / FSG4720 — No Item Name Available (FSG 47)
ManufacturersHdt Expeditionary Systems Inc (CAGE 92878); Du Technologies, Inc (CAGE 470J0)
Technical Specifications
ParameterValue
NSN4720-01-539-7168
Primary Part Number40700
Item NameHose Assembly,air Duct
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerHdt Expeditionary Systems Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4730-00-050-4204AS15002-2P INTERCHANGEABLE
Fitting,lubrication
Sae International Dba Sae International
5305-00-225-3416407-00 INTERCHANGEABLE
Screw,machine
Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
3120-00-339-2618255047-7 INTERCHANGEABLE
Bushing,sleeve
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5325-01-067-589040700 INTERCHANGEABLE
Grommet,nonmetallic
Truck-Lite Co., Llc
5950-01-088-8331593R303A01 INTERCHANGEABLE
Transformer,power
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5305-01-146-597979363 INTERCHANGEABLE
Screw
Dana Commercial Vehicle Products, Llc
5985-01-350-647340700 INTERCHANGEABLE
Attenuator Assembly
U S Dept of Transportation Federal Aviation Administration
5133-01-460-181540700 INTERCHANGEABLE
Drill,twist
Precision Twist Drill Co
4820-01-530-354350146-21 INTERCHANGEABLE
Regulator,thermostatic Temperatu
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
5306-01-556-503040700 INTERCHANGEABLE
Bolt,machine
Fastenal Company Dba Fastenal Co
Cross-Reference Index
Part NumberManufacturer
40700 PRIMARY Hdt Expeditionary Systems Inc (USA)
40700 Du Technologies, Inc (USA)
Related Parts
4730-00-050-4204INTERCHANGEABLE
FITTING,LUBRICATION
AS15002-2P
5305-00-225-3416INTERCHANGEABLE
SCREW,MACHINE
407-00
3120-00-339-2618INTERCHANGEABLE
BUSHING,SLEEVE
255047-7
5325-01-067-5890INTERCHANGEABLE
GROMMET,NONMETALLIC
40700
5950-01-088-8331INTERCHANGEABLE
TRANSFORMER,POWER
593R303A01
5305-01-146-5979INTERCHANGEABLE
SCREW
79363
5985-01-350-6473INTERCHANGEABLE
ATTENUATOR ASSEMBLY
40700
5133-01-460-1815INTERCHANGEABLE
DRILL,TWIST
40700
4820-01-530-3543INTERCHANGEABLE
REGULATOR,THERMOSTATIC TEMPERATU
50146-21
5306-01-556-5030INTERCHANGEABLE
BOLT,MACHINE
40700

Frequently Asked Questions

What is NSN 4720-01-539-7168?

NSN 4720-01-539-7168 is a Hose Assembly,air Duct, manufactured by Hdt Expeditionary Systems Inc, classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-01-539-7168?

NSN 4720-01-539-7168 has 2 cross-referenced part numbers: 40700 (Hdt Expeditionary Systems Inc), 40700 (Du Technologies, Inc).

What NSN replaces 4720-01-539-7168?

There are 10 known substitutes for 4720-01-539-7168: 4730-00-050-4204, 5305-00-225-3416, 3120-00-339-2618 and 7 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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