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PartsTable / COMPONENT / MB12639-0
MB12639-0 ✓ 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 thread_class: 3B FIRST END, connection_type: THREADED INTERNAL TUBE FIRST END, inside_diameter: 0.250 INCHES NOMINAL IN, connection_style: SWIVEL NUT FLARE FIRST END, outside_diameter: 0.450 INCHES NOMINAL IN, thread_direction: RIGHT-HAND 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 4720-00-874-5978, 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
MB12639-0
NSN: 4720-00-874-5978
FSC: 4720
CAGE: 98441 — PARKER HANNIFIN CORP DBA PNEUTRONICS DIV STRATOFLEX PRODUCTS DIVISION (USA)
SPECIFICATIONS
thread_class3B FIRST END
connection_typeTHREADED INTERNAL TUBE FIRST END
inside_diameter0.250 INCHES NOMINAL IN
connection_styleSWIVEL NUT FLARE FIRST END
outside_diameter0.450 INCHES NOMINAL IN
thread_directionRIGHT-HAND FIRST END
features_providedIDENTICAL ENDS
operating_pressure290.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
nominal_thread_size0.438 INCHES FIRST END IN
end_connection_designSTRAIGHT FIRST END
thread_series_designatorUNF FIRST END
inner_conveying_tube_styleHELICAL CLOSE-PITCH CORRUGATED
NSN4720-00-874-5978
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: MB12639-0 · 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
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
FEATURES PROVIDED: IDENTICAL ENDS
•
CONNECTION STYLE: SWIVEL NUT FLARE FIRST END
•
END CONNECTION DESIGN: STRAIGHT FIRST END
•
THREAD CLASS: 3B FIRST END
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
OPERATING PRESSURE: 290.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
•
THREAD SERIES DESIGNATOR: UNF FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLEROUND
FEATURES PROVIDEDIDENTICAL ENDS
CONNECTION STYLESWIVEL NUT FLARE FIRST END
END CONNECTION DESIGNSTRAIGHT FIRST END
THREAD CLASS3B FIRST END
THREAD DIRECTIONRIGHT-HAND FIRST END
OPERATING PRESSURE290.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
THREAD SERIES DESIGNATORUNF FIRST END
MEASURING METHOD AND LENGTH8.130 INCHES MINIMUM OVERALL AND 8.370 INCHES MAXIMUM OVERALL IN
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
5930011079225Interchangeable
interchangeable cross-reference
interchangeable
2FT200Interchangeable
interchangeable cross-reference
interchangeable
22941Interchangeable
interchangeable cross-reference
interchangeable
12639Interchangeable
interchangeable cross-reference
interchangeable
12639 GInterchangeable
interchangeable cross-reference
interchangeable
88024-0082Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MB12639-0?
MB12639-0 is a HOSE ASSEMBLY,METALLIC.
What parts can replace MB12639-0?
There are 9 known substitutes for MB12639-0: 5930011079225, 2FT200, 22941 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MB12639-0?
MB12639-0 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-874-5978. 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