Operation Manual

HEIDENHAIN CNC PILOT 640 613
9.1 Thread pitch
Q = 16 NPT US taper pipe thread
Q = 17 NPTF US taper dryseal pipe thread
Q = 18 NPSC U.S. cylindrical pipe thread with lubricant
Thread
designation
Diameter
(in mm)
Thread pitch
Thread
designation
Diameter
(in mm)
Thread pitch
1/16'' 7.938 0.94074074 3 1/2'' 101.6 3.175
1/8'' 10.287 0.94074074 4'' 114.3 3.175
1/4'' 13.716 1.411111111 5'' 141.3 3.175
3/8'' 17.145 1.411111111 6'' 168.275 3.175
1/2'' 21.336 1.814285714 8'' 219.075 3.175
3/4'' 26.67 1.814285714 10'' 273.05 3.175
1'' 33.401 2.208695652 12'' 323.85 3.175
1 1/4'' 42.164 2.208695652 14'' 355.6 3.175
1 1/2'' 48.26 2.208695652 16'' 406.4 3.175
2'' 60.325 2.208695652 18'' 457.2 3.175
2 1/2'' 73.025 3.175 20'' 508 3.175
3'' 88.9 3.175 24'' 609.6 3.175
Thread
designation
Diameter
(in mm)
Thread pitch
Thread
designation
Diameter
(in mm)
Thread pitch
1/16'' 7.938 0.94074074 1'' 33.401 2.208695652
1/8'' 10.287 0.94074074 1 1/4'' 42.164 2.208695652
1/4'' 13.716 1.411111111 1 1/2'' 48.26 2.208695652
3/8'' 17.145 1.411111111 2'' 60.325 2.208695652
1/2'' 21.336 1.814285714 2 1/2'' 73.025 3.175
3/4'' 26.67 1.814285714 3'' 88.9 3.175
Thread
designation
Diameter
(in mm)
Thread pitch
Thread
designation
Diameter
(in mm)
Thread pitch
1/8'' 10.287 0.94074074 1 1/2'' 48.26 2.208695652
1/4'' 13.716 1.411111111 2'' 60.325 2.208695652
3/8'' 17.145 1.411111111 2 1/2'' 73.025 3.175
1/2'' 21.336 1.814285714 3'' 88.9 3.175
3/4'' 26.67 1.814285714 3 1/2'' 101.6 3.175
1'' 33.401 2.208695652 4'' 114.3 3.175
1 1/4'' 42.164 2.208695652