PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BSK5791Hose Assembly,nonmetallic

C Systems Llc Dba Craig Systems Dba Eastern Technologies · NSN 4720-00-902-3303 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-00-902-3303 — this item is cataloged by the U.S. Government under National Stock Number 4720-00-902-3303. Primary manufacturer part number: BSK5791.
Features
  • Hose Assembly,nonmetallic — FSC 4720
  • Cross-Sectional Shape Style: ROUND
  • Thread Series Designator: UNF FIRST END
  • Thread Series Designator: NPTF SECOND END
  • Measuring Method and Length: 156.000 INCHES NOMINAL OVERALL IN
  • Nominal Thread Size: 0.250 INCHES SECOND END IN
  • Thread Direction: RIGHT-HAND FIRST END
  • Connection Style: INVERTED FLARE SECOND END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-00-902-3303, 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 C Systems Llc Dba Craig Systems Dba Eastern Technologies. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4720-00-902-3303
Primary Part NumberBSK5791
Item NameHose Assembly,nonmetallic
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerC Systems Llc Dba Craig Systems Dba Eastern Technologies
StatusACTIVE
Cross-Sectional Shape StyleROUND
Thread Series DesignatorUNF FIRST END
Thread Series DesignatorNPTF SECOND END
Measuring Method and Length156.000 INCHES NOMINAL OVERALL IN
Nominal Thread Size0.250 INCHES SECOND END IN
Thread DirectionRIGHT-HAND FIRST END
Connection StyleINVERTED FLARE SECOND END
End Connection DesignSTRAIGHT FIRST END
End Connection DesignSTRAIGHT SECOND END
Temp Rating-65.0 FAHRENHEIT SINGLE RESPONSE DEGF
Thread DirectionRIGHT-HAND SECOND END
Connection TypeTHREADED EXTERNAL PIPE FIRST END
Seat Angle30.0 DEGREES FIRST END
Thread Quantity Per Inch14 FIRST END
Inside Surface ConditionSMOOTH
Thread Quantity Per Inch18 SECOND END
Outside Diameter0.750 INCHES NOMINAL IN
Inside Diameter0.375 INCHES NOMINAL IN
Nominal Thread Size0.500 INCHES FIRST END IN
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Connection StyleINVERTED FLARE FIRST END
Seat Angle30.0 DEGREES SECOND END
Outer Covering Environmental ProtectionABRASION RESISTANT AND MILDEW RESISTANT AND OZONE RESISTANT AND COLD RESISTANT AND FUEL RESISTANT
Layer Composition and Location1ST LAYER BRAIDED COTTON CORD AND OUTER LAYER RUBBER IMPREGNATED BRAIDED RAYON CORD
Media for Which DesignedAIR SINGLE RESPONSE
Burst Test Pressure900.0 POUNDS PER SQUARE INCH LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4720-00-238-8304 INTERCHANGEABLE
Hose,nonmetallic
4720-00-287-1621 INTERCHANGEABLE
Hose,nonmetallic
4720-00-678-6125 INTERCHANGEABLE
Hose Assembly,nonmetallic
4720-00-740-9662 INTERCHANGEABLE
Hose Assembly,nonmetallic
4720-00-837-7121 INTERCHANGEABLE
Hose,nonmetallic
4720-00-895-9060 INTERCHANGEABLE
Hose Assembly,nonmetallic
4720-01-213-727010947438-2 INTERCHANGEABLE
Hose Assy
Gichner Systems Group, Inc. Div C5isr Division
4720-01-220-0913 INTERCHANGEABLE
Hose Assembly,nonmetallic
4720-01-254-0189 INTERCHANGEABLE
Hose Assembly,nonmetallic
4720-01-558-4772 INTERCHANGEABLE
Hose Assembly,nonmetallic
Cross-Reference Index
Part NumberManufacturer
BSK5791 C Systems Llc Dba Craig Systems Dba Eastern Technologies (USA)
10947438-2 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
MIL-DTL-3992 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4720-00-238-8304INTERCHANGEABLE
HOSE,NONMETALLIC
4720-00-287-1621INTERCHANGEABLE
HOSE,NONMETALLIC
4720-00-678-6125INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-00-740-9662INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-00-837-7121INTERCHANGEABLE
HOSE,NONMETALLIC
4720-00-895-9060INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-01-213-7270INTERCHANGEABLE
HOSE ASSY
10947438-2
4720-01-220-0913INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-01-254-0189INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
4720-01-558-4772INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC

Frequently Asked Questions

What is NSN 4720-00-902-3303?

NSN 4720-00-902-3303 is a Hose Assembly,nonmetallic, manufactured by C Systems Llc Dba Craig Systems Dba Eastern Technologies, classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-00-902-3303?

NSN 4720-00-902-3303 has 3 cross-referenced part numbers: BSK5791 (C Systems Llc Dba Craig Systems Dba Eastern Technologies), 10947438-2 (U S Army Tank Automotive Command Amsta-Im-Mm), MIL-DTL-3992 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4720-00-902-3303?

There are 10 known substitutes for 4720-00-902-3303: 4720-00-238-8304, 4720-00-287-1621, 4720-00-678-6125 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of BSK5791?

Key specifications for BSK5791: Cross-Sectional Shape Style: ROUND; Thread Series Designator: UNF FIRST END; Thread Series Designator: NPTF SECOND END; Measuring Method and Length: 156.000 INCHES NOMINAL OVERALL IN. 26 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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