Used on rcr for nases. coke bib connector; beverage disconnect, coke bnb screw-on 3/8 inch barb coupling has female threads on one end, 3/8 inch plain barb (unthreaded external) connection on other end; threads proprietary to coke products grooved
collar, tube. collar tube size 1/4 inch i.d, o.d. 3/8 inch by 7/32 inch long. material is 316 high tensile stainless steel. end item, gas pressure controller-nsn 6685-01-529-6990.
3a 1st end thread class 20 1st end thread quantity per inch coupling half quick coupling, self disconnect, bulkhead half, fuel low anodize surface treated grooved unf 1st end thread series
Used on aircraft. 3a all ends thread class 16 1st end thread quantity per inch adapter male tube stainless steel; second end dynatube male rigid, short center wrenching facility unjf 1st end thread series
Used on aircraft. 3a all ends thread class 20 2nd end thread quantity per inch adapter male tube stainless steel; second end dynatube male rigid, short center wrenching facility unjf 1st end thread series