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659557 — TUBE ASSEMBLY,METAL

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

659557: TUBE ASSEMBLY,METAL.

The TUBE ASSEMBLY,METAL is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING SINGLE END, design_form: PREBENT, wall_thickness: 0.035 INCHES NOMINAL IN, bolt_hole_diameter: 0.2778 INCHES NOMINAL SINGLE END IN, bolt_hole_quantity: 3 SINGLE END, mating_end_quantity: 2 SINGLE END. This part is cataloged in the U.S.

Government catalog under NSN 4710-00-411-9913, 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
659557
NSN: 4710-00-411-9913
FSC: 4710 — Pipe, Tube and Rigid Tubing
CAGE: 33830 — AERO TUBE TECHNOLOGIES, LLC DBA TUBE BENDS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING SINGLE END
design_formPREBENT
wall_thickness0.035 INCHES NOMINAL IN
bolt_hole_diameter0.2778 INCHES NOMINAL SINGLE END IN
bolt_hole_quantity3 SINGLE END
mating_end_quantity2 SINGLE END
bolt_circle_diameter1.392 INCHES NOMINAL SINGLE END IN
end_connection_styleRAISED SINGLE END
tube_outside_diameter0.750 INCHES NOMINAL IN
NSN4710-00-411-9913
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 659557 · 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
•
BOLT HOLE DIAMETER: 0.2778 INCHES NOMINAL SINGLE END IN
•
WALL THICKNESS: 0.035 INCHES NOMINAL IN
•
END CONNECTION STYLE: RAISED SINGLE END
•
TUBE OUTSIDE DIAMETER: 0.750 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 3 SINGLE END
•
BOLT CIRCLE DIAMETER: 1.392 INCHES NOMINAL SINGLE END IN
TECHNICAL CHARACTERISTICS
DESIGN FORMPREBENT
MATING END QUANTITY2 SINGLE END
BOLT HOLE DIAMETER0.2778 INCHES NOMINAL SINGLE END IN
WALL THICKNESS0.035 INCHES NOMINAL IN
END CONNECTION STYLERAISED SINGLE END
TUBE OUTSIDE DIAMETER0.750 INCHES NOMINAL IN
BOLT HOLE QUANTITY3 SINGLE END
BOLT CIRCLE DIAMETER1.392 INCHES NOMINAL SINGLE END IN
MATERIALSTEEL CORROSION RESISTING SINGLE END
MATERIALSTEEL CORROSION RESISTING TUBING
SUBSTITUTES & CROSS-REFERENCES 1
649557Reference document
Same NSN cross-reference
Reference document — Secondary 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 659557?
659557 is a TUBE ASSEMBLY,METAL.
What parts can replace 659557?
There is 1 known substitute for 659557: 649557. Substitute compatibility should be verified for your specific system.
What is the NSN for 659557?
659557 is cataloged in the U.S. Government catalog under NSN 4710-00-411-9913. 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.