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Technical Data Sheet
PartsTable / COMPONENT / 373271-1
373271-1 ✓ 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,METALLIC is a the manufacturer industrial component. Key specifications include flow_angle: 45.0 DEGREES SECOND END, seat_angle: 37.0 DEGREES SECOND END, temp_rating: -54.0 CELSIUS AND 125.0 CELSIUS SINGLE RESPONSE DEGC, thread_class: 3B SECOND END, exterior_color: NATURAL, connection_type: THREADED INTERNAL TUBE SECOND 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 4720-00-320-3350, 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
373271-1
NSN: 4720-00-320-3350
FSC: 4720
CAGE: 3B150 — RAYTHEON COMPANY DBA RAYTHEON CO (USA)
SPECIFICATIONS
flow_angle45.0 DEGREES SECOND END
seat_angle37.0 DEGREES SECOND END
temp_rating-54.0 CELSIUS AND 125.0 CELSIUS SINGLE RESPONSE DEGC
thread_class3B SECOND END
exterior_colorNATURAL
connection_typeTHREADED INTERNAL TUBE SECOND END
inside_diameter0.188 INCHES NOMINAL IN
connection_styleSWIVEL NUT FLARE SECOND END
outside_diameter0.312 INCHES NOMINAL IN
thread_directionRIGHT-HAND FIRST END
nominal_thread_size0.375 INCHES SECOND END IN
end_connection_designELBOW SECOND END
NSN4720-00-320-3350
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 373271-1 · 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
•
END CONNECTION DESIGN: ELBOW SECOND END
•
FLOW ANGLE: 45.0 DEGREES SECOND END
•
THREAD CLASS: 3B SECOND END
•
OUTER COVERING ENVIRONMENTAL PROTECTION: CORROSION RESISTANT
•
TEMP RATING: -54.0 CELSIUS AND 125.0 CELSIUS SINGLE RESPONSE DEGC
•
INSIDE DIAMETER: 0.188 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.375 INCHES SECOND END IN
•
CONNECTION TYPE: THREADED INTERNAL TUBE SECOND END
TECHNICAL CHARACTERISTICS (FLIS)
END CONNECTION DESIGNELBOW SECOND END
FLOW ANGLE45.0 DEGREES SECOND END
THREAD CLASS3B SECOND END
OUTER COVERING ENVIRONMENTAL PROTECTIONCORROSION RESISTANT
TEMP RATING-54.0 CELSIUS AND 125.0 CELSIUS SINGLE RESPONSE DEGC
INSIDE DIAMETER0.188 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.375 INCHES SECOND END IN
CONNECTION TYPETHREADED INTERNAL TUBE SECOND END
EXTERIOR COLORNATURAL
MEASURING METHOD AND LENGTH13.000 INCHES NOMINAL WORKING IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
C589AInterchangeable
interchangeable cross-reference
interchangeable
27134Interchangeable
interchangeable cross-reference
interchangeable
66787Interchangeable
interchangeable cross-reference
interchangeable
90637Interchangeable
interchangeable cross-reference
interchangeable
735560Interchangeable
interchangeable cross-reference
interchangeable
R400-1BZ5K1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 373271-1?
373271-1 is a HOSE ASSEMBLY,METALLIC.
What parts can replace 373271-1?
There are 6 known substitutes for 373271-1: C589A, 27134, 66787 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 373271-1?
373271-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-320-3350. 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