scope:

General

This Standard covers pressure-temperature ratings, dimensions, tolerances, marking and material requirements for forged fittings, both socket-welding and threaded, as illustrated in Tables 4 through 7 inclusive.

Fitting Types/Configuration. Types of fittings covered by this Standard are shown in Table 1, by class and size range. Fittings shown in Tables 4 through 7 and A4 through A7 may also be made with combinations of socket-welding and threaded ends.

Alternative Fitting Configuration. Fittings with special threads, or with special counterbores may be made by agreement between the manufacturer and the purchaser.