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418687 — TUBE ASSEMBLY,METAL

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

418687: TUBE ASSEMBLY,METAL.

The TUBE ASSEMBLY,METAL is a the manufacturer industrial component. Key specifications include material: STEEL SINGLE END, design_form: PREBENT, special_features: ACTION ID 45381380, mating_end_quantity: 2 SINGLE END, nominal_thread_size: 0.438 INCHES SINGLE END IN, tube_outside_diameter: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4710-00-083-9343, 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
418687
NSN: 4710-00-083-9343
FSC: 4710 — Pipe, Tube and Rigid Tubing
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL SINGLE END
design_formPREBENT
special_featuresACTION ID 45381380
mating_end_quantity2 SINGLE END
nominal_thread_size0.438 INCHES SINGLE END IN
tube_outside_diameter0.250 INCHES NOMINAL IN
thread_pitch_diameters+0.405 TO 0.408 INCHES SINGLE END IN
thread_series_designatorUNF SINGLE END
NSN4710-00-083-9343
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 418687 · 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
•
DESIGN FORM: PREBENT
•
MATING END QUANTITY: 2 SINGLE END
•
THREAD PITCH DIAMETERS: +0.405 TO 0.408 INCHES SINGLE END IN
•
NOMINAL THREAD SIZE: 0.438 INCHES SINGLE END IN
•
TUBE OUTSIDE DIAMETER: 0.250 INCHES NOMINAL IN
•
MATERIAL: STEEL SINGLE END
•
THREAD SERIES DESIGNATOR: UNF SINGLE END
TECHNICAL CHARACTERISTICS
DESIGN FORMPREBENT
MATING END QUANTITY2 SINGLE END
THREAD PITCH DIAMETERS+0.405 TO 0.408 INCHES SINGLE END IN
NOMINAL THREAD SIZE0.438 INCHES SINGLE END IN
TUBE OUTSIDE DIAMETER0.250 INCHES NOMINAL IN
SPECIAL FEATURESACTION ID 45381380
MATERIALSTEEL SINGLE END
THREAD SERIES DESIGNATORUNF SINGLE END
SUBSTITUTES & CROSS-REFERENCES 1
458123Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 418687?
418687 is a TUBE ASSEMBLY,METAL.
What parts can replace 418687?
There is 1 known substitute for 418687: 458123. Substitute compatibility should be verified for your specific system.
What is the NSN for 418687?
418687 is cataloged in the U.S. Government catalog under NSN 4710-00-083-9343. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.