1.   BSP Series 1 - 20

2.   JIC Series 21 - 29

3.   ORFS Series 30 -33

4.   SAE Series 34 - 38

5.   NPT Series 39 - 41

6.   STAPLE 42

7.   DKL Series 43 - 46

8.   DKO 47

9.   DKS Series 48 - 51

10. General 52 - 71

11. SAE Series 72 - 89

12. FLANGE Series 90 -97