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 7035-01-476-7316
NSN 6645-01-127-1793
NSN 5925-01-442-8589
NSN 5920-00-005-3263
NSN 5950-00-275-2842
NSN 6610-01-250-9327
NSN 6220-00-401-0704
NSN 6110-00-717-3554
NSN 6135-01-532-7951
NSN 5935-01-003-7847
NSN 6685-00-856-1485
NSN 5975-01-498-3872