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PartsTable / COMPONENT / BSK5791
BSK5791 ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The HOSE ASSEMBLY,NONMETALLIC is a the manufacturer industrial component. Key specifications include seat_angle: 30.0 DEGREES SECOND END, temp_rating: -65.0 FAHRENHEIT SINGLE RESPONSE DEGF, connection_type: THREADED EXTERNAL PIPE SECOND END, inside_diameter: 0.375 INCHES NOMINAL IN, connection_style: INVERTED FLARE FIRST END, outside_diameter: 0.750 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-902-3303, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
BSK5791
NSN: 4720-00-902-3303
FSC: 4720
CAGE: 088A2 — C SYSTEMS LLC DBA CRAIG SYSTEMS DBA EASTERN TECHNOLOGIES (USA)
SPECIFICATIONS
seat_angle30.0 DEGREES SECOND END
temp_rating-65.0 FAHRENHEIT SINGLE RESPONSE DEGF
connection_typeTHREADED EXTERNAL PIPE SECOND END
inside_diameter0.375 INCHES NOMINAL IN
connection_styleINVERTED FLARE FIRST END
outside_diameter0.750 INCHES NOMINAL IN
thread_directionRIGHT-HAND FIRST END
burst_test_pressure900.0 POUNDS PER SQUARE INCH LBS
nominal_thread_size0.500 INCHES FIRST END IN
end_connection_designSTRAIGHT FIRST END
inside_surface_conditionSMOOTH
media_for_which_designedAIR SINGLE RESPONSE
NSN4720-00-902-3303
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: BSK5791 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
THREAD SERIES DESIGNATOR: UNF FIRST 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
•
END CONNECTION DESIGN: STRAIGHT FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
4720002388304Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-3992Interchangeable
interchangeable cross-reference
interchangeable
MIL-H-3992Interchangeable
interchangeable cross-reference
interchangeable
99S103Interchangeable
interchangeable cross-reference
interchangeable
8747263Interchangeable
interchangeable cross-reference
interchangeable
MS39325-05S19-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BSK5791?
BSK5791 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace BSK5791?
There are 23 known substitutes for BSK5791: 4720002388304, MIL-DTL-3992, MIL-H-3992 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BSK5791?
BSK5791 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-902-3303. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026