Mfgr identifies next higher assembly as a locking cylinder; used on a macgregor crane
NSN 5985-00-224-6969
NSN 6150-00-576-3964
NSN 5905-01-547-4508
NSN 6220-00-105-1075
NSN 6685-01-659-0885
NSN 5915-01-350-3696
NSN 6650-01-239-2759
NSN 6135-01-526-0144
NSN 2925-00-247-1242
NSN 6220-01-031-9505
NSN 6620-01-107-2965
NSN 5960-01-503-0362