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Technical Data Sheet
PartsTable / COMPONENT / 25523-1
25523-1 ✓ 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 HOSE ASSEMBLY,NONMETALLIC is a the manufacturer industrial component. Key specifications include seat_angle: 45.0 DEGREES SECOND END, temp_rating: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF, thread_class: 1A SECOND END A, vacuum_in_torr: 50.8, connection_type: THREADED EXTERNAL TUBE SECOND END, inside_diameter: 0.375 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 4720-01-130-4359, 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
25523-1
NSN: 4720-01-130-4359
FSC: 4720
CAGE: 81381 — STEWART & STEVENSON POWER PRODUCTS LLC (USA)
SPECIFICATIONS
seat_angle45.0 DEGREES SECOND END
temp_rating-40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF
thread_class1A SECOND END A
vacuum_in_torr50.8
connection_typeTHREADED EXTERNAL TUBE SECOND END
inside_diameter0.375 INCHES NOMINAL IN
connection_styleSWIVEL NUT, INVERTED FLARE SECOND END
outside_diameter0.625 INCHES NOMINAL IN
thread_directionRIGHT-HAND FIRST END
operating_pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
burst_test_pressure1000.0 POUNDS PER SQUARE INCH LBS
nominal_thread_size0.625 INCHES FIRST END IN
NSN4720-01-130-4359
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 25523-1 · 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
•
MINIMUM INSIDE BENDING RADIUS: 3.000 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
CONNECTION STYLE: SWIVEL NUT FLARE FIRST END
•
CONNECTION TYPE: THREADED INTERNAL TUBE FIRST END
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
THREAD SERIES DESIGNATOR: UNF FIRST END
•
HYDROSTATIC TEST PRESSURE: 500.0 POUNDS PER SQUARE INCH LBS
•
OUTER COVERING ENVIRONMENTAL PROTECTION: OIL RESISTANT AND MILDEW RESISTANT
TECHNICAL CHARACTERISTICS (FLIS)
MINIMUM INSIDE BENDING RADIUS3.000 INCHES IN
THREAD DIRECTIONRIGHT-HAND FIRST END
CONNECTION STYLESWIVEL NUT FLARE FIRST END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
CROSS-SECTIONAL SHAPE STYLEROUND
THREAD SERIES DESIGNATORUNF FIRST END
HYDROSTATIC TEST PRESSURE500.0 POUNDS PER SQUARE INCH LBS
OUTER COVERING ENVIRONMENTAL PROTECTIONOIL RESISTANT AND MILDEW RESISTANT
THREAD SERIES DESIGNATORUNF SECOND END
END CONNECTION DESIGNSTRAIGHT SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
25523Interchangeable
interchangeable cross-reference
interchangeable
A-A-59649Interchangeable
interchangeable cross-reference
interchangeable
D73577Interchangeable
interchangeable cross-reference
interchangeable
25523NInterchangeable
interchangeable cross-reference
interchangeable
12824Interchangeable
interchangeable cross-reference
interchangeable
35083Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 25523-1?
25523-1 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace 25523-1?
There are 17 known substitutes for 25523-1: 25523, A-A-59649, D73577 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 25523-1?
25523-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-130-4359. 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