PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-A59270Hose Assembly,nonmetallic

W. H. Smith Hardware Company, the · NSN 4720-00-203-3920 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-00-203-3920 — this item is cataloged by the U.S. Government under National Stock Number 4720-00-203-3920. Primary manufacturer part number: A-A59270.
Features
  • Hose Assembly,nonmetallic — FSC 4720
  • Hydrostatic Test Pressure: 150.0 POUNDS PER SQUARE INCH LBS
  • Connection Style: PLAIN SECOND END
  • Connection Type: THREADED INTERNAL HOSE FIRST END
  • Specification/standard Data: 81348-LH-520 GOVERNMENT SPECIFICATION
  • Thread Quantity Per Inch: 11-1/2 FIRST END
  • Thread Direction: RIGHT-HAND FIRST END
  • Burst Test Pressure: 500.0 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 4720-00-203-3920, 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 W. H. Smith Hardware Company, the. Government technical data includes 29 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4720-00-203-3920
Primary Part NumberA-A59270
Item NameHose Assembly,nonmetallic
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerW. H. Smith Hardware Company, the
StatusACTIVE
Hydrostatic Test Pressure150.0 POUNDS PER SQUARE INCH LBS
Connection StylePLAIN SECOND END
Connection TypeTHREADED INTERNAL HOSE FIRST END
Specification/standard Data81348-LH-520 GOVERNMENT SPECIFICATION
Thread Quantity Per Inch11-1/2 FIRST END
Thread DirectionRIGHT-HAND FIRST END
Burst Test Pressure500.0 POUNDS PER SQUARE INCH LBS
Nominal Thread Size0.750 INCHES SECOND END IN
Inside Surface ConditionSMOOTH
Layer Composition and Location1ST LAYER COTTON YARN OR 1ST LAYER SYNTHETIC YARN AND OUTER LAYER RUBBER, NATURAL AND OUTER LAYER RUBBER, SYNTHETIC
Thread DirectionRIGHT-HAND SECOND END
Thread Quantity Per Inch11-1/2 SECOND END
End Connection DesignSTRAIGHT SECOND END
Connection TypeTHREADED INTERNAL HOSE FIRST END
Thread Quantity Per Inch11-1/2 FIRST END
Operating Pressure125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
Nominal Thread Size0.750 INCHES FIRST END IN
Connection StyleSWIVEL NUT, GASKET SEAL FIRST END
Media for Which DesignedWATER SINGLE RESPONSE
Nominal Thread Size0.750 INCHES SECOND END IN
End Connection DesignSTRAIGHT FIRST END
Nondefinitive Spec/std Data1 CLASS AND 1 TYPE
Connection TypeTHREADED EXTERNAL HOSE SECOND END
Thread Quantity Per Inch11-1/2 SECOND END
Thread Series DesignatorNH SECOND END
Thread Series DesignatorNH FIRST END
Connection TypeTHREADED EXTERNAL HOSE SECOND END
Temp Rating-40.0 FAHRENHEIT SINGLE RESPONSE DEGF
Inside Diameter0.625 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4720-00-199-7806 INTERCHANGEABLE
Hose,nonmetallic
4720-00-202-6721 INTERCHANGEABLE
Hose Assembly,nonmetallic
4720-00-202-6722 INTERCHANGEABLE
Hose Assembly,nonmetallic
4720-00-202-6723 INTERCHANGEABLE
Hose Assembly,nonmetallic
4720-00-203-3912 INTERCHANGEABLE
Hose Assembly,nonmetallic
3750-00-289-9025 INTERCHANGEABLE
Sprinkler,lawn
3750-00-541-4157 INTERCHANGEABLE
Sprinkler,lawn
3750-00-585-2268 INTERCHANGEABLE
Sprinkler,lawn
4720-00-729-5334 INTERCHANGEABLE
Hose Assembly,nonmetallic
4720-00-729-5338 INTERCHANGEABLE
Hose Assembly,nonmetallic
Cross-Reference Index
Part NumberManufacturer
A-A59270 W. H. Smith Hardware Company, the (USA)
AA59270A1B Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
A-A-59270 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
L-H-520 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
4720-00-199-7806INTERCHANGEABLE
HOSE,NONMETALLIC
4720-00-202-6721INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-00-202-6722INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-00-202-6723INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-00-203-3912INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
3750-00-289-9025INTERCHANGEABLE
SPRINKLER,LAWN
3750-00-541-4157INTERCHANGEABLE
SPRINKLER,LAWN
3750-00-585-2268INTERCHANGEABLE
SPRINKLER,LAWN
4720-00-729-5334INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-00-729-5338INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-01-440-4833INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC

Frequently Asked Questions

What is NSN 4720-00-203-3920?

NSN 4720-00-203-3920 is a Hose Assembly,nonmetallic, manufactured by W. H. Smith Hardware Company, the, classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-00-203-3920?

NSN 4720-00-203-3920 has 4 cross-referenced part numbers: A-A59270 (W. H. Smith Hardware Company, the), AA59270A1B (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), A-A-59270 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), L-H-520 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 4720-00-203-3920?

There are 11 known substitutes for 4720-00-203-3920: 4720-00-199-7806, 4720-00-202-6721, 4720-00-202-6722 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-A59270?

Key specifications for A-A59270: Hydrostatic Test Pressure: 150.0 POUNDS PER SQUARE INCH LBS; Connection Style: PLAIN SECOND END; Connection Type: THREADED INTERNAL HOSE FIRST END; Specification/standard Data: 81348-LH-520 GOVERNMENT SPECIFICATION. 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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