Used on aircraft engine oil system,j-57 engine. 3a all ends thread class 20 2nd end thread quantity per inch passivate surface treated un 2nd end thread series
Used on 04f aircraft, stratofortress b-52. 3a all ends thread class 12 1st end thread quantity per inch anodize surface treated un all ends thread series
Used on 05f aircraft, stratolifter c-135. 2a all ends thread class 18 all ends thread quantity per inch passivate surface treated uns all ends thread series
3a 2nd end thread class flange on 1st end, triangular shaped, 2.500 in. dia, 0.188 in. thk, three threaded mounting holes on a 1.687 in. bolt circle dia, 0.190-32unf-3b thread unf 1st end thread series
3a 1st end thread class w/two safety wire holes, 0.056 in. id, located in hex wrenching end spaced 180 deg apart cadmium surface treated unf 1st end thread series
3a 2nd end thread class machined groove in flared end to accommodate seal ring per KC103, 0.375 in. od tube size boss end, hexagon wrenching flats drilled for lockwire 2 places w/drill no. 50 passivate inside surface treated unf 1st end thread series
3a 2nd end thread class machined groove in flared end to accommodate seal ring per KC103, 0.250 in. outside dia tube size boss end, hexagon wrenching flats drilled for lockwire 2 places w/drill no. 50 passivate inside surface treated unf 1st end thread series
3a 2nd end thread class machined groove in flared end to accommodate seal ring pwe KC103, 0.125 in. od tube size boss end, hexagon wrenching flats drilled for lockwire 2 places w/drill no. 50 passivate inside surface treated unf 1st end thread series
