PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M26521-4-180Hose Assembly,nonmetallic

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4720-01-024-6375 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-01-024-6375 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-024-6375. Primary manufacturer part number: M26521-4-180.
Features
  • Hose Assembly,nonmetallic — FSC 4720
  • Thread Series Designator: NPT FIRST END
  • Inside Surface Condition: SMOOTH
  • Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE
  • Connection Type: THREADED EXTERNAL PIPE FIRST END
  • Thread Direction: RIGHT-HAND FIRST END
  • Inside Diameter: 4.000 INCHES NOMINAL IN
  • Hydrostatic Test Pressure: 260.0 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 4720-01-024-6375, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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: Active.

Technical Specifications
ParameterValue
NSN4720-01-024-6375
Primary Part NumberM26521-4-180
Item NameHose Assembly,nonmetallic
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Thread Series DesignatorNPT FIRST END
Inside Surface ConditionSMOOTH
Media for Which DesignedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
Connection TypeTHREADED EXTERNAL PIPE FIRST END
Thread DirectionRIGHT-HAND FIRST END
Inside Diameter4.000 INCHES NOMINAL IN
Hydrostatic Test Pressure260.0 POUNDS PER SQUARE INCH LBS
Layer Composition and LocationOUTER LAYER MOLDED RUBBER, CHLOROPRENE
Burst Test Pressure700.0 POUNDS PER SQUARE INCH LBS
Measuring Method and Length180.000 INCHES NOMINAL EXCLUDING END FITTINGS IN
Connection StylePLAIN FIRST END
End Connection DesignSTRAIGHT FIRST END
Cross-Sectional Shape StyleROUND
Nominal Thread Size4.000 INCHES FIRST END IN
Outside Diameter4.625 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4720-00-088-3053 INTERCHANGEABLE
Hose Assembly,nonmetallic
4720-00-088-4492 INTERCHANGEABLE
Hose Assembly,nonmetallic
4720-00-611-9581 INTERCHANGEABLE
Hose Assembly,nonmetallic
4720-00-720-3847 INTERCHANGEABLE
Hose Assembly,nonmetallic
4720-00-802-5828 INTERCHANGEABLE
Hose Assembly,nonmetallic
4720-00-803-9726 INTERCHANGEABLE
Hose Assembly,nonmetallic
4720-00-917-8373 INTERCHANGEABLE
Hose Assembly,nonmetallic
4720-00-974-1654 INTERCHANGEABLE
Hose Assembly,nonmetallic
4720-00-974-1690 INTERCHANGEABLE
Hose Assembly,nonmetallic
4720-00-974-1713 INTERCHANGEABLE
Hose Assembly,nonmetallic
Cross-Reference Index
Part NumberManufacturer
M26521-4-180 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
015HC-M001 Beta Fueling Systems, Llc (USA)
M26521A4.0R180 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-26521 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4720-00-088-3053INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-00-088-4492INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-00-611-9581INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-00-720-3847INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-00-802-5828INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-00-803-9726INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-00-917-8373INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-00-974-1654INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-00-974-1690INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-00-974-1713INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-00-974-1714INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-00-999-7776INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC

Frequently Asked Questions

What is NSN 4720-01-024-6375?

NSN 4720-01-024-6375 is a Hose Assembly,nonmetallic, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-01-024-6375?

NSN 4720-01-024-6375 has 4 cross-referenced part numbers: M26521-4-180 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 015HC-M001 (Beta Fueling Systems, Llc), M26521A4.0R180 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-26521 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4720-01-024-6375?

There are 12 known substitutes for 4720-01-024-6375: 4720-00-088-3053, 4720-00-088-4492, 4720-00-611-9581 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M26521-4-180?

Key specifications for M26521-4-180: Thread Series Designator: NPT FIRST END; Inside Surface Condition: SMOOTH; Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE; Connection Type: THREADED EXTERNAL PIPE FIRST END. 15 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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