3a external thread class right-hand external 0.766" overall length plug, tube fitting flared (note: drilled hole is optional should not be considered as a separating characteristic unf external thread series
Used on howitzer light towed;105-mm,m102,1015-00-086-8164. 2a external thread class right-hand external 0.658" overall length dichromate surface treated plug, tube fitting flareless (note: drilled hole is optional should not be considered as a separating characteristic unf external thread series
3a external thread class right-hand external 0.641" overall length passivate surface treated plug, tube fitting flareless (note: drilled hole is optional should not be considered as a separating characteristic unjf external thread series