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Technical Data Sheet
PartsTable / COMPONENT / A256501-4B-7
A256501-4B-7 ✓ 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: 37.0 DEGREES AND 45.0 DEGREES FIRST END, temp_rating: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF, thread_class: 2B FIRST END, exterior_color: BLACK, vacuum_in_torr: 50.8, connection_type: THREADED INTERNAL TUBE FIRST END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-786-6286, 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
A256501-4B-7
NSN: 4720-00-786-6286
FSC: 4720
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (USA)
SPECIFICATIONS
seat_angle37.0 DEGREES AND 45.0 DEGREES FIRST END
temp_rating-40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF
thread_class2B FIRST END
exterior_colorBLACK
vacuum_in_torr50.8
connection_typeTHREADED INTERNAL TUBE FIRST END
inside_diameter0.250 INCHES NOMINAL IN
connection_styleINVERTED FLARE SECOND END
outside_diameter0.500 INCHES NOMINAL IN
thread_directionRIGHT-HAND SECOND END
operating_pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
burst_test_pressure1000.0 POUNDS PER SQUARE INCH LBS
NSN4720-00-786-6286
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: A256501-4B-7 · 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
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
NOMINAL THREAD SIZE: 0.438 INCHES FIRST END IN
•
LAYER COMPOSITION AND LOCATION: 1ST LAYER BRAIDED TEXTILE YARN AND OUTER LAYER RUBBER IMPREGNATED BRAIDED FABRIC
•
THREAD CLASS: 2B FIRST END
•
CONNECTION STYLE: SWIVEL NUT FLARE FIRST END
•
OUTSIDE DIAMETER: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND FIRST END
NOMINAL THREAD SIZE0.438 INCHES FIRST END IN
LAYER COMPOSITION AND LOCATION1ST LAYER BRAIDED TEXTILE YARN AND OUTER LAYER RUBBER IMPREGNATED BRAIDED FABRIC
THREAD CLASS2B FIRST END
THREAD DIRECTIONRIGHT-HAND SECOND END
CONNECTION STYLESWIVEL NUT FLARE FIRST END
OUTSIDE DIAMETER0.500 INCHES NOMINAL IN
CONNECTION STYLEINVERTED FLARE SECOND END
MINIMUM INSIDE BENDING RADIUS3.000 INCHES IN
EXTERIOR COLORBLACK
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
PA18007Interchangeable
interchangeable cross-reference
interchangeable
60-801Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
24827Interchangeable
interchangeable cross-reference
interchangeable
DYND40984Interchangeable
interchangeable cross-reference
interchangeable
6515NCM116457Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A256501-4B-7?
A256501-4B-7 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace A256501-4B-7?
There are 7 known substitutes for A256501-4B-7: PA18007, 60-801, AMS-QQ-A-200/3 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A256501-4B-7?
A256501-4B-7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-786-6286. 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