PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

L-H-520Hose Assembly,nonmetallic

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 4720-00-202-6721 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-00-202-6721 — this item is cataloged by the U.S. Government under National Stock Number 4720-00-202-6721. Primary manufacturer part number: L-H-520.
Features
  • Hose Assembly,nonmetallic — FSC 4720
  • Connection Style: GASKET SEAL SECOND END
  • Connection Type: THREADED INTERNAL HOSE FIRST END
  • Media for Which Designed: WATER, FRESH SINGLE RESPONSE
  • Nondefinitive Spec/std Data: 1 CLASS AND 1 TYPE
  • Cross-Sectional Shape Style: ROUND
  • Connection Style: SWIVEL NUT, GASKET SEAL FIRST END
  • End Connection Design: STRAIGHT SECOND END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-00-202-6721, 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 Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 30 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4720-00-202-6721
Primary Part NumberL-H-520
Item NameHose Assembly,nonmetallic
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Connection StyleGASKET SEAL SECOND END
Connection TypeTHREADED INTERNAL HOSE FIRST END
Media for Which DesignedWATER, FRESH SINGLE RESPONSE
Nondefinitive Spec/std Data1 CLASS AND 1 TYPE
Cross-Sectional Shape StyleROUND
Connection StyleSWIVEL NUT, GASKET SEAL FIRST END
End Connection DesignSTRAIGHT SECOND END
Connection TypeTHREADED EXTERNAL HOSE SECOND END
Media for Which DesignedWATER, FRESH SINGLE RESPONSE
Inside Surface ConditionSMOOTH
Thread Series DesignatorNPSH FIRST END
End Connection DesignSTRAIGHT FIRST END
Nominal Thread Size0.750 INCHES SECOND END IN
Thread DirectionRIGHT-HAND FIRST END
Nominal Thread Size0.750 INCHES FIRST END IN
Specification/standard Data81348-LH-520 GOVERNMENT SPECIFICATION
Thread Series DesignatorNPSH SECOND END
Specification/standard Data81348-LH-520 GOVERNMENT SPECIFICATION
Inside Surface ConditionSMOOTH
Nominal Thread Size0.750 INCHES FIRST END IN
Thread DirectionRIGHT-HAND SECOND END
Hydrostatic Test Pressure150.0 POUNDS PER SQUARE INCH LBS
Measuring Method and Length72.000 INCHES NOMINAL EXCLUDING END FITTINGS IN
Burst Test Pressure500.0 POUNDS PER SQUARE INCH LBS
Nominal Thread Size0.750 INCHES SECOND END IN
Nondefinitive Spec/std Data1 CLASS AND 1 TYPE
Hydrostatic Test Pressure150.0 POUNDS PER SQUARE INCH LBS
Thread Series DesignatorNPSH FIRST END
Inside Diameter0.750 INCHES NOMINAL IN
Measuring Method and Length72.000 INCHES NOMINAL EXCLUDING END FITTINGS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4720-00-199-7806 INTERCHANGEABLE
Hose,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
4720-00-203-3920 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
L-H-520 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
A-A-59270 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
Related Parts
4720-00-199-7806INTERCHANGEABLE
HOSE,NONMETALLIC
4720-00-202-6722INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-00-202-6723INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-00-203-3912INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-00-203-3920INTERCHANGEABLE
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 4720-00-202-6721?

NSN 4720-00-202-6721 is a Hose Assembly,nonmetallic, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-00-202-6721?

NSN 4720-00-202-6721 has 2 cross-referenced part numbers: L-H-520 (Federal Specifications Promulgated by General Services Administration Washington DC), A-A-59270 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).

What NSN replaces 4720-00-202-6721?

There are 11 known substitutes for 4720-00-202-6721: 4720-00-199-7806, 4720-00-202-6722, 4720-00-202-6723 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of L-H-520?

Key specifications for L-H-520: Connection Style: GASKET SEAL SECOND END; Connection Type: THREADED INTERNAL HOSE FIRST END; Media for Which Designed: WATER, FRESH SINGLE RESPONSE; Nondefinitive Spec/std Data: 1 CLASS AND 1 TYPE. 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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