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617045 ✓ 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 LOCK,VALVE SPRING RETAINER is a the manufacturer industrial component. Key specifications include length: 0.448 INCHES NOMINAL IN, material: STEEL, thickness: 0.032 INCHES NOMINAL IN, hole_diameter: 0.140 INCHES NOMINAL IN, thread_provision: UNTHREADED, casehardening_indicator: NOT CASEHARDENED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-358-6107, 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
617045
NSN: 4720-00-358-6107
FSC: 4720
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
length0.448 INCHES NOMINAL IN
materialSTEEL
thickness0.032 INCHES NOMINAL IN
hole_diameter0.140 INCHES NOMINAL IN
thread_provisionUNTHREADED
casehardening_indicatorNOT CASEHARDENED
largest_outside_diameter0.375 INCHES NOMINAL IN
NSN4720-00-358-6107
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 617045 · 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 20
1159-10Interchangeable
interchangeable cross-reference
interchangeable
TR1432Interchangeable
interchangeable cross-reference
interchangeable
26431Interchangeable
interchangeable cross-reference
interchangeable
910574-001Interchangeable
interchangeable cross-reference
interchangeable
1117-13-0119Interchangeable
interchangeable cross-reference
interchangeable
101389Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 617045?
617045 is a LOCK,VALVE SPRING RETAINER.
What parts can replace 617045?
There are 20 known substitutes for 617045: 1159-10, TR1432, 26431 and 17 more. Substitute compatibility should be verified for your specific system.
Is 617045 still available?
617045 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026