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Technical Data Sheet
PartsTable / COMPONENT / 25478-1
25478-1 ✓ 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 WIRE ROPE ASSEMBLY,SINGLE LEG is a the manufacturer industrial component. Key specifications include seat_angle: 37.0 DEGREES FIRST END, temp_rating: -65.0 FAHRENHEIT AND 450.0 FAHRENHEIT SINGLE RESPONSE DEGF, thread_class: 3B FIRST END, connection_type: THREADED INTERNAL TUBE FIRST END, inside_diameter: 0.406 INCHES NOMINAL IN, connection_style: SWIVEL NUT FLARE 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 4720-00-659-4626, 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
25478-1
NSN: 4720-00-659-4626
FSC: 4720
CAGE: 82577 — RAYTHEON COMPANY DBA RAYTHEON (USA)
SPECIFICATIONS
seat_angle37.0 DEGREES FIRST END
temp_rating-65.0 FAHRENHEIT AND 450.0 FAHRENHEIT SINGLE RESPONSE DEGF
thread_class3B FIRST END
connection_typeTHREADED INTERNAL TUBE FIRST END
inside_diameter0.406 INCHES NOMINAL IN
connection_styleSWIVEL NUT FLARE FIRST END
outside_diameter0.562 INCHES NOMINAL IN
thread_directionRIGHT-HAND FIRST END
operating_pressure1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
burst_test_pressure10000.0 POUNDS PER SQUARE INCH LBS
nominal_thread_size0.750 INCHES FIRST END IN
end_connection_designSTRAIGHT FIRST END
NSN4720-00-659-4626
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 25478-1 · 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
•
MEASURING METHOD AND LENGTH: 300.000 INCHES NOMINAL WORKING IN
•
TEMP RATING: -65.0 FAHRENHEIT AND 450.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
INSIDE SURFACE CONDITION: SMOOTH
•
INSIDE DIAMETER: 0.406 INCHES NOMINAL IN
•
OUTER COVERING ENVIRONMENTAL PROTECTION: CORROSION RESISTANT
•
THREAD SERIES DESIGNATOR: UNF FIRST END
•
BURST TEST PRESSURE: 10000.0 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS (FLIS)
MEASURING METHOD AND LENGTH300.000 INCHES NOMINAL WORKING IN
TEMP RATING-65.0 FAHRENHEIT AND 450.0 FAHRENHEIT SINGLE RESPONSE DEGF
CROSS-SECTIONAL SHAPE STYLEROUND
INSIDE SURFACE CONDITIONSMOOTH
INSIDE DIAMETER0.406 INCHES NOMINAL IN
OUTER COVERING ENVIRONMENTAL PROTECTIONCORROSION RESISTANT
THREAD SERIES DESIGNATORUNF FIRST END
BURST TEST PRESSURE10000.0 POUNDS PER SQUARE INCH LBS
THREAD CLASS3B FIRST END
END CONNECTION DESIGNSTRAIGHT FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
25478-1Interchangeable
interchangeable cross-reference
interchangeable
25478Interchangeable
interchangeable cross-reference
interchangeable
79B0100008C3000Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 25478-1?
25478-1 is a WIRE ROPE ASSEMBLY,SINGLE LEG.
What parts can replace 25478-1?
There are 3 known substitutes for 25478-1: 25478-1, 25478, 79B0100008C3000. Substitute compatibility should be verified for your specific system.
What is the NSN for 25478-1?
25478-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-659-4626. 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