PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31570Hose Assembly,nonmetallic

Tennant Company · NSN 4720-01-478-8623 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-01-478-8623 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-478-8623. Primary manufacturer part number: 31570.
Features
  • Hose Assembly,nonmetallic — FSC 4720
  • Inside Diameter: 0.250 INCHES NOMINAL IN
  • Thread Class: 2B FIRST END
  • Nominal Thread Size: 0.438 INCHES SECOND END IN
  • Connection Style: SWIVEL NUT FLARE SECOND END
  • Thread Series Designator: UNF SECOND END
  • Thread Series Designator: UNF FIRST END
  • End Connection Design: ELBOW SECOND END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-478-8623, 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 Tennant Company. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4720-01-478-8623
Primary Part Number31570
Item NameHose Assembly,nonmetallic
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerTennant Company
StatusACTIVE
Inside Diameter0.250 INCHES NOMINAL IN
Thread Class2B FIRST END
Nominal Thread Size0.438 INCHES SECOND END IN
Connection StyleSWIVEL NUT FLARE SECOND END
Thread Series DesignatorUNF SECOND END
Thread Series DesignatorUNF FIRST END
End Connection DesignELBOW SECOND END
Inside Surface ConditionSMOOTH
Measuring Method and Length166.000 INCHES NOMINAL EXCLUDING END FITTINGS IN
Thread Class2B SECOND END
Flow Angle45.0 DEGREES SECOND END
Seat Angle37.0 DEGREES FIRST END
Nominal Thread Size0.438 INCHES FIRST END IN
Connection TypeTHREADED INTERNAL TUBE SECOND END
Connection StyleSWIVEL NUT FLARE FIRST END
Seat Angle37.0 DEGREES SECOND END
Connection TypeTHREADED INTERNAL TUBE FIRST END
Thread DirectionRIGHT-HAND FIRST END
End Connection DesignSTRAIGHT FIRST END
Thread DirectionRIGHT-HAND SECOND END
Thread Quantity Per Inch2B SECOND END
Cross-Sectional Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5110-00-293-148831.570 INTERCHANGEABLE
File,hand
Grobet File Co of America Inc Dba Grobet Usa
5330-00-314-3923 INTERCHANGEABLE
Retainer,packing
3120-01-367-68947-199-002668 INTERCHANGEABLE
Bushing,sleeve
Grove U.s. Llc Dba Grove Us Llc
Cross-Reference Index
Part NumberManufacturer
31570 Tennant Company (USA)
Related Parts
5110-00-293-1488INTERCHANGEABLE
FILE,HAND
31.570
5330-00-314-3923INTERCHANGEABLE
RETAINER,PACKING
3120-01-367-6894INTERCHANGEABLE
BUSHING,SLEEVE
7-199-002668

Frequently Asked Questions

What is NSN 4720-01-478-8623?

NSN 4720-01-478-8623 is a Hose Assembly,nonmetallic, manufactured by Tennant Company, classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-01-478-8623?

NSN 4720-01-478-8623 has 1 cross-referenced part number: 31570 (Tennant Company).

What NSN replaces 4720-01-478-8623?

There are 3 known substitutes for 4720-01-478-8623: 5110-00-293-1488, 5330-00-314-3923, 3120-01-367-6894. Verify interchangeability with system specifications before substitution.

What are the specifications of 31570?

Key specifications for 31570: Inside Diameter: 0.250 INCHES NOMINAL IN; Thread Class: 2B FIRST END; Nominal Thread Size: 0.438 INCHES SECOND END IN; Connection Style: SWIVEL NUT FLARE SECOND END. 25 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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