Used on nsn 2320-01-304-2277 and 2320-01-304-2278 pls (palletized loading system). right-hand 31.0mm thread length material is medium carbon alloy steel m thread series
3a thread class right-hand 0.500" thread length flat chamfer head style 16 thread quantity per inch aluminum fastener surface treated unrc thread series
9.575" inside diameter 10.760" outside diameter 0.182" major thickness internal ring style 2 bolt holes, 0.250 ins from opening, 0.195 ins dia cadmium surface treated