Has zerk type lubrication fitting
NSN 6240-01-563-5904
NSN 5990-01-389-1196
NSN 5915-01-600-3319
NSN 5975-00-081-5247
NSN 5905-01-386-4483
NSN 5950-00-406-0510
NSN 5999-00-489-7171
NSN 5935-01-153-7881
NSN 5910-01-360-4288
NSN 5965-01-411-9933
NSN 6620-01-043-6424
NSN 6650-01-485-3444