3102-172 – Flange Yokes – 1310 Series – Bolt Circle Dia 3.120″ – Pilot Dia 1.772, M

3102-172 1310 Series Flange Yoke Bolt Circle 3.120" Pilot 1.772

The 3102-172 is a 1310 series flange yoke with a 3.120" bolt circle diameter and a 1.772" male pilot diameter. It uses a 4-bolt pattern with 0.325" bolt hole diameter. The center U-joint to flat dimension measures 2.671"—longer than most 1310 series flange yokes in this family.

Specifications

• Part Number: 3102-172
• Series: 1310
• Bolt Circle Dia: 3.120"
• Bolt Hole Dia: 0.325"
• Bolt Holes: 4
• Pilot Dia: 1.772" Male
• CJ to Flat: 2.671"

When ordering the 3102-172, verify the companion flange bolt circle is 3.120" and the pilot bore is 1.772". Note the 2.671" CJ to flat dimension—this is significantly longer than the 3102-175 (also BC 3.120", 1.750" CJ-to-flat), which affects overall driveshaft length calculations. Confirm the required CJ-to-flat dimension for your assembly before selecting.

The 0.325" bolt hole diameter is smaller than the 3102-175 (0.405" holes)—confirm fastener size against your application. The 1310 series ears require a 1310 series U-joint. Match the bolt circle (3.120"), pilot diameter (1.772" M), bolt hole diameter (0.325"), and CJ to flat (2.671") against the companion flange and driveshaft assembly requirements before ordering the 3102-172.