PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A3501-3Hose Assembly,nonmetallic

Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division · NSN 4720-01-173-4609 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-01-173-4609 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-173-4609. Primary manufacturer part number: A3501-3.
Features
  • Hose Assembly,nonmetallic — FSC 4720
  • Thread Series Designator: UN SECOND END
  • Thread Quantity Per Inch: 12 SECOND END
  • Inside Surface Condition: SMOOTH
  • Measuring Method and Length: 80.000 INCHES NOMINAL OVERALL IN
  • Inside Diameter: 1.000 INCHES NOMINAL IN
  • Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE
  • Hydrostatic Test Pressure: 2250.0 POUNDS PER SQUARE INCH LBS
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-173-4609, 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 Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4720-01-173-4609
Primary Part NumberA3501-3
Item NameHose Assembly,nonmetallic
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerParker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division
StatusACTIVE
Thread Series DesignatorUN SECOND END
Thread Quantity Per Inch12 SECOND END
Inside Surface ConditionSMOOTH
Measuring Method and Length80.000 INCHES NOMINAL OVERALL IN
Inside Diameter1.000 INCHES NOMINAL IN
Media for Which DesignedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
Hydrostatic Test Pressure2250.0 POUNDS PER SQUARE INCH LBS
Connection StyleSWIVEL NUT FLARE FIRST END
Nominal Thread Size1.312 INCHES SECOND END IN
End Connection DesignSTRAIGHT FIRST END
Connection StyleINVERTED FLARE SECOND END
Burst Test Pressure4500.0 POUNDS PER SQUARE INCH LBS
Thread Quantity Per Inch12 FIRST END
Seat Angle37.0 DEGREES FIRST END
Layer Composition and Location1ST LAYER BRAIDED STEEL WIRE AND 2ND LAYER BRAIDED STEEL WIRE AND OUTER LAYER MOLDED RUBBER, CHLOROPRENE
Thread DirectionRIGHT-HAND SECOND END
Minimum Inside Bending Radius11.000 INCHES IN
Thread Class3B FIRST END
Connection TypeTHREADED INTERNAL TUBE FIRST END
Thread Series DesignatorUN FIRST END
End Connection DesignSTRAIGHT SECOND END
Outside Diameter1.375 INCHES NOMINAL IN
Thread Class3A SECOND END A
Thread DirectionRIGHT-HAND FIRST END
Connection TypeTHREADED EXTERNAL TUBE SECOND END
Temp Rating-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
Operating Pressure1125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
Nominal Thread Size1.312 INCHES FIRST END IN
Seat Angle37.0 DEGREES SECOND END
Cross-Sectional Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5360-00-539-9259A35013 INTERCHANGEABLE
Spring,helical,compression
Leslie Controls, Inc. Dba Leslie Controls Inc
4320-01-585-0711523003 INTERCHANGEABLE
Pump,centrifugal
Little Giant Pump Co
Cross-Reference Index
Part NumberManufacturer
12256658 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
A3501-3 PRIMARY Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
4720011734609 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
12256658-3 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Related Parts
5360-00-539-9259INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
A35013
4320-01-585-0711INTERCHANGEABLE
PUMP,CENTRIFUGAL
523003

Frequently Asked Questions

What is NSN 4720-01-173-4609?

NSN 4720-01-173-4609 is a Hose Assembly,nonmetallic, manufactured by Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division, classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-01-173-4609?

NSN 4720-01-173-4609 has 4 cross-referenced part numbers: 12256658 (U S Army Tank Automotive Command Amsta-Im-Mm), A3501-3 (Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division), 4720011734609 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), 12256658-3 (U S Army Tank Automotive Command Amsta-Im-Mm).

What NSN replaces 4720-01-173-4609?

There are 2 known substitutes for 4720-01-173-4609: 5360-00-539-9259, 4320-01-585-0711. Verify interchangeability with system specifications before substitution.

What are the specifications of A3501-3?

Key specifications for A3501-3: Thread Series Designator: UN SECOND END; Thread Quantity Per Inch: 12 SECOND END; Inside Surface Condition: SMOOTH; Measuring Method and Length: 80.000 INCHES NOMINAL OVERALL IN. 30 total characteristics are documented in the Federal Logistics Information System.

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