A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.
NSN 6150-01-567-3054
NSN 6130-01-579-2183
NSN 6645-00-340-4795
NSN
NSN 5905-01-453-2470
NSN 6150-00-724-1598
NSN 5945-00-578-9993
NSN 6110-00-914-1942
NSN 5999-01-278-8341
NSN 6150-01-028-3350
NSN 5950-00-375-8284
NSN 7035-01-479-5268