Part Number: 137-N70 (Oring,buna 70 durometer size#137) Part Number: 137-N90 (Oring,buna 90 durometer size#137) Part Number: 137N91D23 (Feltro) Part Number: 137NA250 (Ne) Part Number: 137NBKMAB (Ne) Part Number: 137NC (Ne) Part Number: 137NC137N (Ne) Part Number: 137NM31973 (Nut, self-locking) Part Number: 137NM31981 (Nut, plain) Part Number: 137NM31987 (Screw, machine) Part Number: 137NM31991 (Washer) Part Number: 137NM31991-ISSUE2 (Washer) Part Number: 137NM31995 (Washer) Part Number: 137NM32604SA (Brush section, cleaning, artille)