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8J5146 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The SYNCHRO,CONTROL TRANSFORMER is a the manufacturer industrial component. Key specifications include length: 4.2500 INCHES NOMINAL IN, material: ALUMINUM STANDOFF, body_size: 15, body_style: PLAIN, SOLID, bore_style: PLAIN BOTH ENDS, shaft_type: ROUND SINGLE SHAFT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-185-4441, 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
8J5146
NSN: 4730-01-185-4441
FSC: 4730
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
length4.2500 INCHES NOMINAL IN
materialALUMINUM STANDOFF
body_size15
body_stylePLAIN, SOLID
bore_stylePLAIN BOTH ENDS
shaft_typeROUND SINGLE SHAFT
tooth_formSTANDARD
shaft_length0.4300 INCHES NOMINAL SINGLE SHAFT IN
thread_class2B LEFT INTERNAL (INCLUDES THRU THREAD)
overall_length3.1900 INCHES MAXIMUM IN
pilot_diameter1.3365 INCHES NOMINAL IN
shaft_diameter0.1871 INCHES NOMINAL SINGLE SHAFT IN
NSN4730-01-185-4441
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 8J5146 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
60526Interchangeable
interchangeable cross-reference
interchangeable
25509Interchangeable
interchangeable cross-reference
interchangeable
10154474Interchangeable
interchangeable cross-reference
interchangeable
207423Interchangeable
interchangeable cross-reference
interchangeable
3174AS5511Interchangeable
interchangeable cross-reference
interchangeable
A025-0509Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8J5146?
8J5146 is a SYNCHRO,CONTROL TRANSFORMER.
What parts can replace 8J5146?
There are 6 known substitutes for 8J5146: 60526, 25509, 10154474 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8J5146?
8J5146 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-185-4441. 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