This standard defines the dimensions and tolerances for the male sealing end of inch series pipe couplings, 37° spherical, for aerospace applications.
Matched fluid system component shall have a female sealing end in accordance with EN 4550-4.
BS EN 4550-1:2003 history
2014BS EN 4550-1:2014 Aerospace series. Pipe coupling, 37. Design configuration. Inch series. Male sealing ends, spherical
2003BS EN 4550-1:2003 Aerospace series - Pipe coupling 37 °. Design configuration - Inch series - Male sealing ends, spherical