PartsTable
Technical Data Sheet
418683 ✓ 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 SINGLE END, design_form: PREBENT, thread_class: 3B SINGLE END, seat_angle_in_deg: 37.0 SINGLE END, mating_end_quantity: 2 SINGLE END, nominal_thread_size: 0.750 INCHES SINGLE END IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-083-7036, 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
418683
NSN: 4710-00-083-7036
FSC: 4710
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL SINGLE END
design_formPREBENT
thread_class3B SINGLE END
seat_angle_in_deg37.0 SINGLE END
mating_end_quantity2 SINGLE END
nominal_thread_size0.750 INCHES SINGLE END IN
end_connection_styleSWIVEL NUT, FLARED SINGLE END
tube_outside_diameter0.500 INCHES NOMINAL IN
thread_pitch_diameters+0.709 TO 0.714 INCHES SINGLE END IN
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) SINGLE END
criticality_code_justificationFEAT
NSN4710-00-083-7036
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — PN: 418683 · 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
SEAT ANGLE IN DEG: 37.0 SINGLE END
TUBE OUTSIDE DIAMETER: 0.500 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATION: FEAT
DESIGN FORM: PREBENT
MATING END QUANTITY: 2 SINGLE END
NOMINAL THREAD SIZE: 0.750 INCHES SINGLE END IN
END CONNECTION STYLE: SWIVEL NUT, FLARED SINGLE END
TECHNICAL CHARACTERISTICS (FLIS)
SEAT ANGLE IN DEG37.0 SINGLE END
TUBE OUTSIDE DIAMETER0.500 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATIONFEAT
DESIGN FORMPREBENT
SPECIAL FEATURESIAW DOD 4100.39-M V.10 TBL 181 THIS PART MEETS THE Y REQUIREMENTS DUE TO CRITICAL FEATURES, TOLERANCES, FIT RESTRICTIONS, MATERIAL PROPERTIES AND MANUFACTURING PROCESS. FAILURE COULD RESULT IN LOSS OR SUBSTANTIAL DAMAGE TO WEAPON SYSTEM, DEATH OR SERIOUS INJURY
MATING END QUANTITY2 SINGLE END
NOMINAL THREAD SIZE0.750 INCHES SINGLE END IN
END CONNECTION STYLESWIVEL NUT, FLARED SINGLE END
MATERIALSTEEL SINGLE END
THREAD CLASS3B SINGLE END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
AS568-050Interchangeable
interchangeable cross-reference
interchangeable
429257Interchangeable
interchangeable cross-reference
interchangeable
646793Interchangeable
Same NIIN cross-reference
interchangeable
458136Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 418683?
418683 is a TUBE ASSEMBLY,METAL.
What parts can replace 418683?
There are 4 known substitutes for 418683: AS568-050, 429257, 646793 and 1 more. Substitute compatibility should be verified for your specific system.
Is 418683 still available?
418683 is currently cancelled.
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