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Technical Data Sheet
PartsTable / COMPONENT / 9Y6518 IT 29
9Y6518 IT 29 ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-01-350-4047, 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
9Y6518 IT 29
NSN: 4710-01-350-4047
FSC: 4710
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
Part Number9Y6518 IT 29
NSN4710-01-350-4047
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 9Y6518 IT 29 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
9Y6518Interchangeable
interchangeable cross-reference
interchangeable
16449Interchangeable
interchangeable cross-reference
interchangeable
016449Interchangeable
interchangeable cross-reference
interchangeable
9Y6518 IT 66Interchangeable
interchangeable cross-reference
interchangeable
9Y7426Interchangeable
interchangeable cross-reference
interchangeable
7E9652Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9Y6518 IT 29?
9Y6518 IT 29 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace 9Y6518 IT 29?
There are 7 known substitutes for 9Y6518 IT 29: 9Y6518, 16449, 016449 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 9Y6518 IT 29?
9Y6518 IT 29 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-01-350-4047. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026