Simpson Lawrence 

Seawolf windlass 

Spare parts with Part No 520-XX 

I also have a listing with part no 60520XX

520-26 Screw seal for M6 socket head
520-30 Bearing,
520-34 Mainshaft key, 1/4" x 7"
520-38 Machine screw, M6 x 35 mm
520-39 Grub screw, for main shaft gear
520-43 Washer, M10
520-57 Spring pin,
520-63 O ring for chain counter 
520-066 Drum spacer bearing

These are spares bought about 15-25 years ago.

Location 1/13