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 5905-01-239-7861
NSN 5990-01-042-1984
NSN 5925-00-539-8372
NSN 6105-01-398-1674
NSN 5960-01-328-8248
NSN 5985-00-215-5874
NSN 6620-01-282-6446
NSN 5975-01-027-4079
NSN 6240-00-275-1950
NSN 6110-01-297-9563
NSN 5985-00-984-8760
NSN 5930-00-170-6748