The difference between the part numbers is that the markings are different
NSN 5990-01-087-7081
NSN 5999-01-475-9138
NSN 6650-00-707-1417
NSN 6320-00-336-9123
NSN 6150-01-630-4724
NSN 6610-00-893-0893
NSN 6150-01-392-3699
NSN 6110-00-448-7334
NSN 5925-01-085-5526
NSN 6220-01-156-4564
NSN 5960-00-453-5281
NSN 4140-01-302-7486
Last Updated: 06/03/2024