KS195 3/8″ Square Hole with Spring Lock Bearing and Square End Bearing #8043 KS195 K-3 regulator; KP-7 spring loc bearing; KP-9S square end bearing
KS195L 3/8″ Square Hole with Longer Spring Lock Bearing & Square End Bearing #8048 K-3 regulator; KP-7L long spring loc bearing
