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G9
Parker Hannifin Corporation
Tube Fittings Division
Columbus, Ohio
http://www.parker.com/tfd
4300 Catalog
Pipe Fittings and Port Adapters Reference
Dimensions and pressures for reference only, subject to change.
NPTF and BSPT Port Ends
NPTF and BSPT
Port
NPTF and BSPT
Stud
Thread
Drill
Minimum
Thread
Thread
Engagement
SIZE
PT
D Max
J
TE
(inch)
(inch)
(inch)
NPTF
2
1/8-27
0.188
0.31
0.24
4
1/4-18
0.281
0.44
0.34
6
3/8-18
0.406
0.47
0.34
8
1/2-14
0.531
0.59
0.46
12
3/4-14
0.719
0.63
0.46
16
1-11 1/2
0.938
0.75
0.59
20
1 1/4-11 1/2 1.250
0.78
0.59
24
1 1/2-11 1/2 1.500
0.81
0.59
32
2-11 1/2
1.938
0.81
0.59
BSPT
2
1/8-28
0.188
0.31
0.24
4
1/4-19
0.281
0.44
0.34
6
3/8-19
0.406
0.47
0.34
8
1/2-14
0.531
0.59
0.46
12
3/4-14
0.719
0.63
0.46
16
1-11
0.938
0.75
0.59
20
1 1/4-11
1.250
0.78
0.59
24
1 1/2-11
1.438
0.81
0.59
32
2-11
1.938
0.81
0.59