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Technical Data Sheet
PartsTable / COMPONENT / 277340
277340 ✓ 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 VALVE,BRAKE PNEUMATIC is a the manufacturer industrial component. Key specifications include material: STEEL SINGLE END, design_form: PREBENT, thread_class: 3B SINGLE END, wall_thickness: 0.031 INCHES NOMINAL IN, seat_angle_in_deg: 37.0 SINGLE END, mating_end_quantity: 2 SINGLE 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 4710-00-139-3206, 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
277340
NSN: 4710-00-139-3206
FSC: 4710
CAGE: 24821 — ROSEMOUNT ANALYTICAL, INC. DIV PROCESS ANALYTICAL DIVISION (USA)
SPECIFICATIONS
materialSTEEL SINGLE END
design_formPREBENT
thread_class3B SINGLE END
wall_thickness0.031 INCHES NOMINAL IN
seat_angle_in_deg37.0 SINGLE END
mating_end_quantity2 SINGLE END
nominal_thread_size0.438 INCHES SINGLE END IN
end_connection_styleSWIVEL NUT, FLARED SINGLE END
tube_outside_diameter0.250 INCHES NOMINAL IN
thread_series_designatorUNF SINGLE END
NSN4710-00-139-3206
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 277340 · 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
•
THREAD CLASS: 3B SINGLE END
•
WALL THICKNESS: 0.031 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 37.0 SINGLE END
•
DESIGN FORM: PREBENT
•
MATERIAL: STEEL TUBING
•
MATING END QUANTITY: 2 SINGLE END
•
NOMINAL THREAD SIZE: 0.438 INCHES SINGLE END IN
•
END CONNECTION STYLE: SWIVEL NUT, FLARED SINGLE END
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3B SINGLE END
WALL THICKNESS0.031 INCHES NOMINAL IN
SEAT ANGLE IN DEG37.0 SINGLE END
DESIGN FORMPREBENT
MATERIALSTEEL TUBING
MATING END QUANTITY2 SINGLE END
NOMINAL THREAD SIZE0.438 INCHES SINGLE END IN
END CONNECTION STYLESWIVEL NUT, FLARED SINGLE END
MATERIALSTEEL SINGLE END
THREAD SERIES DESIGNATORUNF SINGLE END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
18159FXInterchangeable
interchangeable cross-reference
interchangeable
811162Interchangeable
interchangeable cross-reference
interchangeable
277340Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 277340?
277340 is a VALVE,BRAKE PNEUMATIC.
What parts can replace 277340?
There are 3 known substitutes for 277340: 18159FX, 811162, 277340. Substitute compatibility should be verified for your specific system.
What is the NSN for 277340?
277340 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-139-3206. 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