PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5238Hose,air Duct

Flexco, Inc · NSN 4720-01-661-3703 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-01-661-3703 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-661-3703. Primary manufacturer part number: 5238.
Features
  • Hose,air Duct — FSC 4720
  • 1 verified cross-reference
  • Primary manufacturer: Flexco, Inc
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Hose,air Duct, cataloged under National Stock Number 4720-01-661-3703, 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 Flexco, Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameHose,air Duct
FSC / FSG4720 — No Item Name Available (FSG 47)
ManufacturersFlexco, Inc (CAGE 99135)
Technical Specifications
ParameterValue
NSN4720-01-661-3703
Primary Part Number5238
Item NameHose,air Duct
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerFlexco, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5999-00-052-2300M39029/34-272 INTERCHANGEABLE
Contact,electrical
Sae International Dba Sae International
5975-00-064-4772 INTERCHANGEABLE
Box Connector,electrical
3110-00-117-06931207-B INTERCHANGEABLE
Bearing,roller,cylindrical
Regal Beloit America, Inc. Dba Rollway Bearing
3110-00-151-91323-32GRADE3 INTERCHANGEABLE
Ball,bearing
Skf Usa Inc.
3110-00-227-4718 INTERCHANGEABLE
Ball,bearing
5331-00-232-8505 INTERCHANGEABLE
O-Ring
6665-00-692-6601 INTERCHANGEABLE
Calibrator Set,radiac
5935-00-827-0958 INTERCHANGEABLE
Connector,receptacle,electrical
5915-00-840-0686241-0283-000 INTERCHANGEABLE
Filter,low Pass
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
4310-00-963-91555238 INTERCHANGEABLE
Seat,valve,1st Stag
Norwalk Compreseer Company Inc Dba Norwalk Compressor Company
Cross-Reference Index
Part NumberManufacturer
5238 Flexco, Inc (USA)
Related Parts
5999-00-052-2300INTERCHANGEABLE
CONTACT,ELECTRICAL
M39029/34-272
5975-00-064-4772INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
3110-00-117-0693INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
1207-B
3110-00-151-9132INTERCHANGEABLE
BALL,BEARING
3-32GRADE3
3110-00-227-4718INTERCHANGEABLE
BALL,BEARING
5331-00-232-8505INTERCHANGEABLE
O-RING
6665-00-692-6601INTERCHANGEABLE
CALIBRATOR SET,RADIAC
5935-00-827-0958INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5915-00-840-0686INTERCHANGEABLE
FILTER,LOW PASS
241-0283-000
4310-00-963-9155INTERCHANGEABLE
SEAT,VALVE,1ST STAG
5238
6110-01-293-2791INTERCHANGEABLE
CONTACTOR,MAGNETIC
5238
5998-01-525-1232INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5238

Frequently Asked Questions

What is NSN 4720-01-661-3703?

NSN 4720-01-661-3703 is a Hose,air Duct, manufactured by Flexco, Inc, classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-01-661-3703?

NSN 4720-01-661-3703 has 1 cross-referenced part number: 5238 (Flexco, Inc).

What NSN replaces 4720-01-661-3703?

There are 12 known substitutes for 4720-01-661-3703: 5999-00-052-2300, 5975-00-064-4772, 3110-00-117-0693 and 9 more. Verify interchangeability with system specifications before substitution.

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