3a all ends thread class w/mtg oval flange, 2.609 in. lg by 1.312 in. w, located 1 in. from one end single joint, double elbow design unf all ends thread series
mechanical: classification mil-h-5440, class 1500 psi, type i, swiveling motion = 360 deg.; ambient temp. range = -65 to +165 deg. f.; end item nsn = 1090-00-923-5971
Used on nike hercules missile. 3a all ends thread class 1st end bulkhead flared tube; oval flange, 2 holes, 0.257 in. dia; 0.625 in. dia spotface, backside single joint, double elbow design unf all ends thread series
2a 1st end thread class 12 1st end thread quantity per inch synthetic rubber buna n seals cadmium follower ring surface treated single joint, elbow design npsm 2nd end thread series
