Water-sealed oak-leather piston cup
NSN 6130-01-310-7447
NSN 5920-00-510-7656
NSN 6150-00-553-1535
NSN 6610-01-141-9979
NSN 5895-01-230-2358
NSN 5996-00-407-2268
NSN 5925-00-918-5531
NSN 5996-00-006-1118
NSN 5925-00-468-2757
NSN 6105-00-067-7517
NSN 5965-01-210-7784
NSN 7035-01-627-3521