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 2925-01-633-4048
NSN 6135-00-170-8819
NSN 5945-00-431-5040
NSN 6105-01-079-3754
NSN 6320-01-082-2970
NSN 6685-01-565-9049
NSN 5835-01-381-4452
NSN 6240-01-556-5480
NSN 5925-01-056-5127
NSN 5990-00-722-9698
NSN 5975-01-243-1108
NSN 6105-01-552-3533