Check out this fantastic piece of mid-century industrial history! 11 ½ (Standard NPT plumbing and line pipe pitch). 10-V (10-Vee sharp 60° thread). 8-V (8-Vee sharp 60° thread). 5 Distinct Thread Pitches Stamped on Wheel.
Check out this fantastic piece of mid-century industrial history! 11 ½ (Standard NPT plumbing and line pipe pitch). 10-V (10-Vee sharp 60° thread). 8-V (8-Vee sharp 60° thread). 5 Distinct Thread Pitches Stamped on Wheel.