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Technical Data Sheet
PartsTable / COMPONENT / 66000004RR-0790
66000004RR-0790 ✓ 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 FIRST END, temp_rating: -65.0 FAHRENHEIT AND 400.0 FAHRENHEIT SINGLE RESPONSE DEGF, thread_class: 3B FIRST END, connection_type: THREADED INTERNAL TUBE FIRST END, inside_diameter: 0.229 INCHES MINIMUM 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 4720-01-127-8211, 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
66000004RR-0790
NSN: 4720-01-127-8211
FSC: 4720
CAGE: 78570 — SMITHS TUBULAR SYSTEMS-LACONIA, INC. (USA)
SPECIFICATIONS
seat_angle37.0 DEGREES FIRST END
temp_rating-65.0 FAHRENHEIT AND 400.0 FAHRENHEIT SINGLE RESPONSE DEGF
thread_class3B FIRST END
connection_typeTHREADED INTERNAL TUBE FIRST END
inside_diameter0.229 INCHES MINIMUM IN
connection_styleSWIVEL NUT FLARE FIRST END
outside_diameter0.420 INCHES MAXIMUM IN
thread_directionRIGHT-HAND FIRST END
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
burst_test_pressure12000.0 POUNDS PER SQUARE INCH LBS
nominal_thread_size0.750 INCHES FIRST END IN
end_connection_designSTRAIGHT FIRST END
NSN4720-01-127-8211
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 66000004RR-0790 · 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
•
LAYER COMPOSITION AND LOCATION: 1ST LAYER BRAIDED CORROSION RESISTANT STEEL WIRE AND OUTER LAYER BRAIDED CORROSION RESISTANT STEEL WIRE
•
SEAT ANGLE: 37.0 DEGREES FIRST END
•
THREAD CLASS: 3B FIRST END
•
BURST TEST PRESSURE: 12000.0 POUNDS PER SQUARE INCH LBS
•
INSIDE DIAMETER: 0.229 INCHES MINIMUM IN
•
TEMP RATING: -65.0 FAHRENHEIT AND 400.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
THREAD SERIES DESIGNATOR: UNF FIRST END
•
CONNECTION TYPE: THREADED INTERNAL TUBE FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
LAYER COMPOSITION AND LOCATION1ST LAYER BRAIDED CORROSION RESISTANT STEEL WIRE AND OUTER LAYER BRAIDED CORROSION RESISTANT STEEL WIRE
SEAT ANGLE37.0 DEGREES FIRST END
THREAD CLASS3B FIRST END
BURST TEST PRESSURE12000.0 POUNDS PER SQUARE INCH LBS
INSIDE DIAMETER0.229 INCHES MINIMUM IN
TEMP RATING-65.0 FAHRENHEIT AND 400.0 FAHRENHEIT SINGLE RESPONSE DEGF
THREAD SERIES DESIGNATORUNF FIRST END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
CONNECTION STYLESWIVEL NUT FLARE FIRST END
MINIMUM INSIDE BENDING RADIUS3.000 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
84891Interchangeable
interchangeable cross-reference
interchangeable
653638Interchangeable
interchangeable cross-reference
interchangeable
469-6405191-15Interchangeable
interchangeable cross-reference
interchangeable
8489Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 66000004RR-0790?
66000004RR-0790 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace 66000004RR-0790?
There are 4 known substitutes for 66000004RR-0790: 84891, 653638, 469-6405191-15 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 66000004RR-0790?
66000004RR-0790 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-127-8211. 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