PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

500-279Hose,air Duct,air Breathing

Avox Systems Inc Dba Avox Systems Inc · NSN 4720-00-613-5901 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-00-613-5901 — this item is cataloged by the U.S. Government under National Stock Number 4720-00-613-5901. Primary manufacturer part number: 500-279.
Features
  • Hose,air Duct,air Breathing — FSC 4720
  • Connection Type: PREFORMED SECOND END
  • End Overall Length: 0.938 INCHES NOMINAL FIRST END IN
  • Connection Type: PREFORMED FIRST END
  • Connection Style: ROUND FIRST END
  • Inside Diameter: 0.750 INCHES NOMINAL FIRST END IN
  • Measuring Method and Length: 17.500 INCHES NOMINAL OVERALL IN
  • Connection Style: ROUND SECOND END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Hose,air Duct,air Breathing, cataloged under National Stock Number 4720-00-613-5901, 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 Avox Systems Inc Dba Avox Systems Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4720-00-613-5901
Primary Part Number500-279
Item NameHose,air Duct,air Breathing
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerAvox Systems Inc Dba Avox Systems Inc
StatusCANCELLED
Connection TypePREFORMED SECOND END
End Overall Length0.938 INCHES NOMINAL FIRST END IN
Connection TypePREFORMED FIRST END
Connection StyleROUND FIRST END
Inside Diameter0.750 INCHES NOMINAL FIRST END IN
Measuring Method and Length17.500 INCHES NOMINAL OVERALL IN
Connection StyleROUND SECOND END
Wall Thickness0.060 INCHES NOMINAL IN
End Overall Length0.719 INCHES NOMINAL SECOND END IN
Cross-Sectional Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6505-00-006-33214704 INTERCHANGEABLE
Carbenicillin Disodium
Roerig Div Pfizer Inc
4310-00-009-522904704 0004 INTERCHANGEABLE
Pneumatic Muffler,exhaust-Intake
Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division
3110-00-068-9395 INTERCHANGEABLE
Bearing,roller,tapered
5940-00-159-1290 INTERCHANGEABLE
Terminal,lug
2825-00-175-80434704 INTERCHANGEABLE
Shaft Assembly
Northrop Grumman Systems Corporation Div Marine Systems
5930-00-250-7873 INTERCHANGEABLE
Switch,box
5930-00-359-08645161877 INTERCHANGEABLE
Switch
U S Army Tank Automotive Command Amsta-Im-Mm
4320-01-198-741847040004 INTERCHANGEABLE
Vent,pump
Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division
5340-01-422-58534704 INTERCHANGEABLE
Handle,door
Hoyt Corporation
2805-01-480-3582004704 INTERCHANGEABLE
Camshaft,engine
Bauer Compressors, Inc.
Cross-Reference Index
Part NumberManufacturer
4704 Gencorp Automotive Engineered Elastomers Div (USA)
500-279 PRIMARY Avox Systems Inc Dba Avox Systems Inc (USA)
Related Parts
6505-00-006-3321INTERCHANGEABLE
CARBENICILLIN DISODIUM
4704
4310-00-009-5229INTERCHANGEABLE
PNEUMATIC MUFFLER,EXHAUST-INTAKE
04704 0004
3110-00-068-9395INTERCHANGEABLE
BEARING,ROLLER,TAPERED
5940-00-159-1290INTERCHANGEABLE
TERMINAL,LUG
2825-00-175-8043INTERCHANGEABLE
SHAFT ASSEMBLY
4704
5930-00-250-7873INTERCHANGEABLE
SWITCH,BOX
5930-00-359-0864INTERCHANGEABLE
SWITCH
5161877
4320-01-198-7418INTERCHANGEABLE
VENT,PUMP
47040004
5340-01-422-5853INTERCHANGEABLE
HANDLE,DOOR
4704
2805-01-480-3582INTERCHANGEABLE
CAMSHAFT,ENGINE
004704
5120-01-522-6512INTERCHANGEABLE
FLARING TOOL
6520-01-570-9420INTERCHANGEABLE
STONE ARKANSAS
4704

Frequently Asked Questions

What is NSN 4720-00-613-5901?

NSN 4720-00-613-5901 is a Hose,air Duct,air Breathing, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 4720 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4720-00-613-5901?

NSN 4720-00-613-5901 has 2 cross-referenced part numbers: 4704 (Gencorp Automotive Engineered Elastomers Div), 500-279 (Avox Systems Inc Dba Avox Systems Inc).

What NSN replaces 4720-00-613-5901?

There are 12 known substitutes for 4720-00-613-5901: 6505-00-006-3321, 4310-00-009-5229, 3110-00-068-9395 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 500-279?

Key specifications for 500-279: Connection Type: PREFORMED SECOND END; End Overall Length: 0.938 INCHES NOMINAL FIRST END IN; Connection Type: PREFORMED FIRST END; Special Features: OZONE RESISTANCE:NOT OZONE RESISTANCE; END SIMILARITY:NOT IDENTICAL; HOSE STYLE:FULLY CONVOLUTED, STYLE NO. 2 FROM OLD FIIG A22900; HOSE MATERIAL:SILICON RUBBER. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4720-00-613-5901 still in active supply?

NSN 4720-00-613-5901 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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