>> Search results for: M4021B NSN Search Results National Stock Number (NSN) Description 3950-01-194-1957, 3950011941957 WINCH,DRUM,HAND OPERATED 3950-01-463-2462 , 3950014632462 Cancelled -> Replaced by 3950011941957 5985-01-139-1775, 5985011391775 WINCH BRAKE 1 Related Inventory Search You can use this search box to continue searching. Search parameters can include any combination of characteristics, specifications, description, partial part numbers, NSN or other stocking number. Special characters are not needed and are automatically stripped before searching. Do you sell this part? Become part of our growing pool of certified suppliers. Send Information