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3168953 — TUBE ASSEMBLY,METAL

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

3168953: TUBE ASSEMBLY,METAL.

The TUBE ASSEMBLY,METAL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 FIRST END, design_form: PREBENT, thread_class: 3B FIRST END, wall_thickness: 0.020 INCHES NOMINAL IN, thread_direction: RIGHT-HAND FIRST END, seat_angle_in_deg: 45.0 FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4710-01-119-0822, 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
3168953
NSN: 4710-01-119-0822
FSC: 4710 — Pipe, Tube and Rigid Tubing
CAGE: 99193 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - PHOENIX (USA)
SPECIFICATIONS
materialSTEEL COMP 304 FIRST END
design_formPREBENT
thread_class3B FIRST END
wall_thickness0.020 INCHES NOMINAL IN
thread_directionRIGHT-HAND FIRST END
seat_angle_in_deg45.0 FIRST END
mating_end_quantity1 SECOND END
nominal_thread_size0.438 INCHES FIRST END IN
end_connection_styleSWIVEL NUT, FLARED FIRST END
tube_outside_diameter0.250 INCHES NOMINAL IN
end_connection_spec/stdANA,AN818,PART NO. A818-4J,MIL,MS20819,PART NO. MS20819-4J
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
NSN4710-01-119-0822
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 3168953 · 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: 45.0 FIRST END
•
DESIGN FORM: PREBENT
•
MATING END QUANTITY: 1 SECOND END
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-T-8504 MIL SPEC SINGLE MATERIAL RESPONSE TUBING
•
WALL THICKNESS: 0.020 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND SECOND END
TECHNICAL CHARACTERISTICS
SEAT ANGLE IN DEG45.0 FIRST END
SEAT ANGLE IN DEG45.0 SECOND END
DESIGN FORMPREBENT
MATING END QUANTITY1 SECOND END
MATING END QUANTITY1 FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-T-8504 MIL SPEC SINGLE MATERIAL RESPONSE TUBING
WALL THICKNESS0.020 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND SECOND END
THREAD DIRECTIONRIGHT-HAND FIRST END
NOMINAL THREAD SIZE0.438 INCHES SECOND END IN
OTHER ITEMS IN FSC 4710 — Pipe, Tube and Rigid Tubing
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4710-00-001-0080 4710-00-001-0081 4710-00-001-0082 4710-00-001-1229 4710-00-001-1676 4710-00-001-1686 4710-00-001-1688 4710-00-001-1691
SUBSTITUTES & CROSS-REFERENCES 1
3168953-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3168953?
3168953 is a TUBE ASSEMBLY,METAL.
What parts can replace 3168953?
There is 1 known substitute for 3168953: 3168953-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 3168953?
3168953 is cataloged in the U.S. Government catalog under NSN 4710-01-119-0822. 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.