Straining material is of stainless steel wire cloth;housing(60-40-18)is full ferritizing anneal ductile iron;degreasing solvent per mil-prf-680 shall be noncorrosive to bearings;fluid temperature max is 100 to 136 deg.Fahrenheit
Mil-prf-680 type 2 manufacturers specification
Type iii to mil-prf-680
Type ii to mil-prf-680
Type i to mil-prf-680