These procedures cover the following: Paragraph 3 - Cone end connections for flared tube and brazed ferrule, with and without gasket. Paragraph 4 - Boss end connections, positioned type, with back-up ring. Paragraph 5 - Boss end connections, positioned type, without back-up ring Paragraph 6 - Boss end connections, non-positioned type. Paragraph 7 - Bulkhead connections.
This design standard specifies the dimensions of the externally threaded fitting end to be assembled into an internally threaded fluid system port, using an elastomeric o-ring for sealing. Fitting end dimensions and o-ring sizes agree with ISO 7320-1985.