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664778 — TUBE ASSEMBLY,METAL

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

664778: TUBE ASSEMBLY,METAL.

The TUBE ASSEMBLY,METAL is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY TUBING, design_form: PREBENT, bolt_hole_quantity: 4 FIRST END, end_connection_style: PLAIN FIRST END, tube_outside_diameter: 1.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4710-00-449-3223, 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
664778
NSN: 4710-00-449-3223
FSC: 4710 — Pipe, Tube and Rigid Tubing
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialALUMINUM ALLOY TUBING
design_formPREBENT
bolt_hole_quantity4 FIRST END
end_connection_stylePLAIN FIRST END
tube_outside_diameter1.000 INCHES NOMINAL IN
NSN4710-00-449-3223
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 664778 · 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
•
END CONNECTION STYLE: PLAIN FIRST END
•
TUBE OUTSIDE DIAMETER: 1.000 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 3 SECOND END
•
MATERIAL: ALUMINUM ALLOY TUBING
TECHNICAL CHARACTERISTICS
DESIGN FORMPREBENT
END CONNECTION STYLEPLAIN FIRST END
END CONNECTION STYLEPLAIN SECOND END
TUBE OUTSIDE DIAMETER1.000 INCHES NOMINAL IN
BOLT HOLE QUANTITY3 SECOND END
BOLT HOLE QUANTITY4 FIRST END
MATERIALALUMINUM ALLOY TUBING
MATERIALALUMINUM ALLOY SECOND END
MATERIALALUMINUM ALLOY FIRST END
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
692010Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 664778?
664778 is a TUBE ASSEMBLY,METAL.
What parts can replace 664778?
There is 1 known substitute for 664778: 692010. Substitute compatibility should be verified for your specific system.
What is the NSN for 664778?
664778 is cataloged in the U.S. Government catalog under NSN 4710-00-449-3223. 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.