Water-sealed oak-leather piston cup
NSN 5996-01-568-1602
NSN 5975-01-189-7261
NSN 6645-01-367-2581
NSN 5915-01-439-5539
NSN 5960-00-597-2680
NSN 5960-00-237-6917
NSN 5998-01-206-5175
NSN 6650-01-361-9336
NSN 6645-01-297-2081
NSN 5925-00-853-6198
NSN 5960-01-054-9639
NSN 5990-01-633-9503