0.498" outside diameter bore inside diameter relieved to 0.321 in. min, 0.343 in. max dia by 0.010 in. min, 0.020 in. max length phosphate, dod-p-16232, type m, class 1 or phosphate, dod-p-16232, type z, class 1 surface treated plain, counterbored
Used on bearing assembly, wheel mounting; 20.490 in nom od, 12.690 in nom id, 2 in nom h; 2 greese fittings p/n ms15001-1; altered p/n a8-17p3k fscm 28666.
0.3460" overall length furnished with seal bonded to bearing on od surface of flange; seal matl-fluorosilicone, mil-25988, type 1, class 1, grade 70; flat spot, w/a 16 microinch surf. finish on od surf. of flange 22c solid, external flange one end