HEIDENHAIN 548431-05 - Page 684

Tables and overviews
10
684
HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
Q = 17
NPTF US taper dryseal pipe thread
Thread
designation
Diameter (in
mm)
Thread pitch
1/16'' 7.938 0.94074074
1/8'' 10.287 0.94074074
1/4'' 13.716 1.411111111
3/8'' 17.145 1.411111111
1/2'' 21.336 1.814285714
3/4'' 26.67 1.814285714
1'' 33.401 2.208695652
1 1/4'' 42.164 2.208695652
1 1/2'' 48.26 2.208695652
2'' 60.325 2.208695652
2 1/2'' 73.025 3.175
3'' 88.9 3.175
Q = 18
NPSC U.S. cylindrical pipe thread
with lubricant
Thread
designation
Diameter (in
mm)
Thread pitch
1/8'' 10.287 0.94074074
1/4'' 13.716 1.411111111
3/8'' 17.145 1.411111111
1/2'' 21.336 1.814285714
3/4'' 26.67 1.814285714
1'' 33.401 2.208695652
1 1/4'' 42.164 2.208695652
1 1/2'' 48.26 2.208695652
2'' 60.325 2.208695652
2 1/2'' 73.025 3.175
3'' 88.9 3.175
3 1/2'' 101.6 3.175
4'' 114.3 3.175
Q = 19
NPFS U.S. cylindrical pipe thread
without lubricant
Thread
designation
Diameter (in
mm)
Thread pitch
1/16'' 7.938 0.94074074
1/8'' 10.287 0.94074074
1/4'' 13.716 1.411111111
3/8'' 17.145 1.411111111
1/2'' 21.336 1.814285714
3/4'' 26.67 1.814285714
1'' 33.401 2.208695652