Water-sealed oak-leather piston cup
NSN 4140-01-481-1696
NSN 5920-00-317-2219
NSN 6130-01-351-0088
NSN 5855-01-229-3864
NSN 5960-01-476-5686
NSN 6645-01-550-9669
NSN 6145-01-377-0706
NSN 2925-00-496-9082
NSN 6130-00-261-4942
NSN 7035-01-056-5350
NSN 6130-01-307-9606
NSN 5999-01-595-3140