A pulley with grooves and pockets shaped to accommodate the links of a load chain. There is a positive connection between the item and the chain.
NSN 5920-00-892-2640
NSN 6610-01-250-2811
NSN 6610-01-400-3880
NSN 5950-01-357-3315
NSN 6105-00-075-5977
NSN 6240-01-150-9290
NSN 2925-01-394-5650
NSN 6240-01-550-5158
NSN 6130-01-450-9915
NSN 5935-00-143-8275
NSN 5910-00-975-6631
NSN 6150-01-104-7888