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 5965-01-381-4879
NSN 5975-01-605-2629
NSN 6110-00-168-8683
NSN 5935-00-003-7737
NSN 4140-01-197-8148
NSN 5895-00-416-6141
NSN 5975-00-719-9793
NSN 6610-01-515-4967
NSN 5925-01-090-3859
NSN 6610-01-640-9367
NSN 6150-00-874-8672
NSN 5945-01-315-9832