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BM43418 ✓ 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 TUBE ASSEMBLY,METAL is a the manufacturer industrial component. Key specifications include material: STEEL TUBING, design_form: PREBENT, thread_class: 2A SINGLE END A, wall_thickness: 0.035 INCHES NOMINAL IN, thread_direction: RIGHT-HAND SINGLE END, seat_angle_in_deg: 45.0 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 4710-00-859-2308, 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
BM43418
NSN: 4710-00-859-2308
FSC: 4710
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
materialSTEEL TUBING
design_formPREBENT
thread_class2A SINGLE END A
wall_thickness0.035 INCHES NOMINAL IN
thread_directionRIGHT-HAND SINGLE END
seat_angle_in_deg45.0 SINGLE END
mating_end_quantity2 SINGLE END
nominal_thread_size0.438 INCHES SINGLE END IN
end_connection_styleSWIVEL NUT, INVERTED FLARE SINGLE END
tube_outside_diameter0.250 INCHES NOMINAL IN
thread_series_designatorUNS SINGLE END
NSN4710-00-859-2308
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: BM43418 · 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: 2A SINGLE END A
•
THREAD SERIES DESIGNATOR: UNS SINGLE END
•
MATERIAL: STEEL TUBING
•
SEAT ANGLE IN DEG: 45.0 SINGLE END
•
NOMINAL THREAD SIZE: 0.438 INCHES SINGLE END IN
•
END CONNECTION STYLE: SWIVEL NUT, INVERTED FLARE SINGLE END
•
TUBE OUTSIDE DIAMETER: 0.250 INCHES NOMINAL IN
•
DESIGN FORM: PREBENT
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2A SINGLE END A
THREAD SERIES DESIGNATORUNS SINGLE END
MATERIALSTEEL TUBING
SEAT ANGLE IN DEG45.0 SINGLE END
NOMINAL THREAD SIZE0.438 INCHES SINGLE END IN
END CONNECTION STYLESWIVEL NUT, INVERTED FLARE SINGLE END
TUBE OUTSIDE DIAMETER0.250 INCHES NOMINAL IN
DESIGN FORMPREBENT
MATERIALSTEEL SINGLE END
WALL THICKNESS0.035 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
115757Interchangeable
interchangeable cross-reference
interchangeable
TS64543Interchangeable
interchangeable cross-reference
interchangeable
253851Interchangeable
interchangeable cross-reference
interchangeable
C-115757Interchangeable
interchangeable cross-reference
interchangeable
115757-PInterchangeable
interchangeable cross-reference
interchangeable
6525780Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BM43418?
BM43418 is a TUBE ASSEMBLY,METAL.
What parts can replace BM43418?
There are 6 known substitutes for BM43418: 115757, TS64543, 253851 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BM43418?
BM43418 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-859-2308. 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