This SAE Aerospace Standard (AS) establishes the requirements for fluid fittings that combine both straight thread boss or flanged connections and 37° flared connections for use in all types of fluid systems.
SAE AS4875/1-2015 history
2016SAE AS4875/1A-2016 Fittings, Straight Thread Boss or Flanged 37° Flared, Fluid Connection
2015SAE AS4875/1-2015 Fittings, Straight Thread Boss or Flanged to 37° Flared, Fluid Connection
1995SAE AS4875/1-1995 Fittings, Straight Thread Boss or Flanged to 37 Degree Flared, Fluid Connection