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646834 — TUBE ASSEMBLY,METAL

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

646834: TUBE ASSEMBLY,METAL.

The TUBE ASSEMBLY,METAL is a the manufacturer industrial component. Key specifications include body_style: SURFACE MOUNT, body_width: 1.156 INCHES NOMINAL IN, body_height: 0.469 INCHES NOMINAL IN, body_length: 3.875 INCHES NOMINAL IN, actuator_style: RECTANGULAR, inclosure_type: FULLY INCLOSED. This part is cataloged in the U.S.

Government catalog under NSN 4710-00-075-2672, 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
646834
NSN: 4710-00-075-2672
FSC: 4710 — Pipe, Tube and Rigid Tubing
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
body_styleSURFACE MOUNT
body_width1.156 INCHES NOMINAL IN
body_height0.469 INCHES NOMINAL IN
body_length3.875 INCHES NOMINAL IN
actuator_styleRECTANGULAR
inclosure_typeFULLY INCLOSED
overall_length3.875 INCHES NOMINAL IN
mounting_methodUNTHREADED HOLE(S)
actuator_inscriptionON OFF SINGLE ACTUATOR
terminal_type_and_quantity2 SCREW
nonpile-up_contact_arrangement1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT
maximum_voltage_rating_in_volts250.0 AC
NSN4710-00-075-2672
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 646834 · 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
SUBSTITUTES & CROSS-REFERENCES 1
483971Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 646834?
646834 is a TUBE ASSEMBLY,METAL.
What parts can replace 646834?
There is 1 known substitute for 646834: 483971. Substitute compatibility should be verified for your specific system.
What is the NSN for 646834?
646834 is cataloged in the U.S. Government catalog under NSN 4710-00-075-2672. 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.