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1B5781-01 — TUBE ASSEMBLY,METAL

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

1B5781-01: TUBE ASSEMBLY,METAL.

The TUBE ASSEMBLY,METAL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 321 TUBING, design_form: PREBENT, thread_class: 3B SINGLE END, wall_thickness: 0.020 INCHES MINIMUM AND 0.032 INCHES MAXIMUM IN, special_features: INCLUDES: 762258, COUPLING 1 EA; 1A9404, REDUCER BODY, 1EA, thread_direction: RIGHT-HAND SINGLE END. This part is cataloged in the U.S.

Government catalog under NSN 4710-01-388-4781, 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
1B5781-01
NSN: 4710-01-388-4781
FSC: 4710 — Pipe, Tube and Rigid Tubing
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 321 TUBING
design_formPREBENT
thread_class3B SINGLE END
wall_thickness0.020 INCHES MINIMUM AND 0.032 INCHES MAXIMUM IN
special_featuresINCLUDES: 762258, COUPLING 1 EA; 1A9404, REDUCER BODY, 1EA
thread_directionRIGHT-HAND SINGLE END
mating_end_quantity2 SINGLE END
nominal_thread_size0.812 INCHES SINGLE END IN
end_connection_stylePLAIN SINGLE END
tube_outside_diameter0.362 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
end_connection_spec/stdMIL, MS9198, PART NO. MS9198-09 AND MIL, MS1229, PART NO. MS122904
end_item_identificationU/O C17 ENGINE
NSN4710-01-388-4781
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 1B5781-01 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5570 ASSN STD SINGLE MATERIAL RESPONSE TUBING
•
WALL THICKNESS: 0.020 INCHES MINIMUM AND 0.032 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND SINGLE END
•
NOMINAL THREAD SIZE: 0.812 INCHES SINGLE END IN
•
END CONNECTION STYLE: PLAIN SINGLE END
•
TUBE OUTSIDE DIAMETER: 0.362 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
DESIGN FORMPREBENT
MATING END QUANTITY2 SINGLE END
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5570 ASSN STD SINGLE MATERIAL RESPONSE TUBING
WALL THICKNESS0.020 INCHES MINIMUM AND 0.032 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND SINGLE END
NOMINAL THREAD SIZE0.812 INCHES SINGLE END IN
END CONNECTION STYLEPLAIN SINGLE END
TUBE OUTSIDE DIAMETER0.362 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
SPECIAL FEATURESINCLUDES: 762258, COUPLING 1 EA; 1A9404, REDUCER BODY, 1EA
THREAD CLASS3B SINGLE 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1B5781-01?
1B5781-01 is a TUBE ASSEMBLY,METAL.
What is the NSN for 1B5781-01?
1B5781-01 is cataloged in the U.S. Government catalog under NSN 4710-01-388-4781. This indicates validated use in U.S. government and defense supply chains.
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