BSPP thread has Adapter 60 cone end (ISO/DIS 8434-6 and BS 5200 ), male bspp thread end with 60 deg cone will mate with female 60 deg seat for sealing, BSPP thread dimensions as follows:
T D2 D3 T1 T2 Size BSPP mm mm L1 mm BSPT NPT(F) BSPP
02 G 1/8 A 3.5 7.5 8 1/8 1/8 1/8 1/4 1/4
04 G 1/4 A 4.7 10.4 11 1/4 1/4 1/4 1/8 1/8 1/8 3/8 3/8
06 G 3/8 A 7.9 14.0 12 3/8 3/8 3/8 1/4 1/4 1/4 1/2 1/2
08 G 1/2 A 11.1 17.5 14 1/2 1/2 1/2 3/8 3/8 1/4 3/4 3/8
10 G 5/8 A 14.3 19.3 16 1/2 1/2 3/4 5/8
12 G 3/4 A 16.7 22.9 16 3/4 3/4 3/4 1/2 1/2 1/4 1 1 3/8 1/2 5/8
16 G 1 A 22.2 28.7 19 1 1 1 3/4 3/4 1/2 5/8 3/4
20 G 1 1/4 A 28.6 36.8 22 1 1/4 3/4 1 1 1/4
24 G 1 1/2 A 33.3 42.7 22 1 1/2 1 1 1/4 1 1/2
32 G 2 A 46.0 54.6 25 1 1/2 2
