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Technical Data Sheet
PartsTable / COMPONENT / B144-77
B144-77 ✓ 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 connection_type: THREADED EXTERNAL PIPE FIRST END, inside_diameter: 0.500 INCHES NOMINAL IN, outside_diameter: 0.870 INCHES NOMINAL IN, nominal_thread_size: 0.500 INCHES FIRST END IN, end_item_identification: 2320-01-452-5579, cross-sectional_shape_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-500-2809, 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
B144-77
NSN: 4720-01-500-2809
FSC: 4720
CAGE: 03533 — CRANE CARRIER COMPANY, LLC (USA)
SPECIFICATIONS
connection_typeTHREADED EXTERNAL PIPE FIRST END
inside_diameter0.500 INCHES NOMINAL IN
outside_diameter0.870 INCHES NOMINAL IN
nominal_thread_size0.500 INCHES FIRST END IN
end_item_identification2320-01-452-5579
cross-sectional_shape_styleROUND
measuring_method_and_length24.000 INCHES NOMINAL OVERALL IN
part_name_assigned_by_controlling_agencyHOSE, AIR BRAKE W/ FT'GS .50 ID X .87 OD FRAME TO AXLE
NSN4720-01-500-2809
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: B144-77 · 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
•
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
•
MEASURING METHOD AND LENGTH: 24.000 INCHES NOMINAL OVERALL IN
•
NOMINAL THREAD SIZE: 0.380 INCHES SECOND END IN
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATION2320-01-452-5579
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
MEASURING METHOD AND LENGTH24.000 INCHES NOMINAL OVERALL IN
NOMINAL THREAD SIZE0.380 INCHES SECOND END IN
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
PART NAME ASSIGNED BY CONTROLLING AGENCYHOSE, AIR BRAKE W/ FT'GS .50 ID X .87 OD FRAME TO AXLE
NOMINAL THREAD SIZE0.500 INCHES FIRST END IN
CROSS-SECTIONAL SHAPE STYLEROUND
OUTSIDE DIAMETER0.870 INCHES NOMINAL IN
INSIDE DIAMETER0.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
144-77Interchangeable
interchangeable cross-reference
interchangeable
B144-77Interchangeable
interchangeable cross-reference
interchangeable
144-91Interchangeable
interchangeable cross-reference
interchangeable
A144-844Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B144-77?
B144-77 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace B144-77?
There are 4 known substitutes for B144-77: 144-77, B144-77, 144-91 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B144-77?
B144-77 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-500-2809. 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