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 5985-01-501-1261
NSN 5920-00-577-8735
NSN 5920-01-437-5916
NSN 6240-00-246-5060
NSN 6240-00-117-9225
NSN 6150-01-044-4505
NSN 5920-01-364-3465
NSN 6240-01-459-7827
NSN 6620-01-332-3921
NSN 6145-00-521-0001
NSN 6105-00-779-0769
NSN 5985-01-485-2416