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 6220-01-642-8678
NSN 6240-01-411-3921
NSN 5985-00-739-6853
NSN 6105-01-028-4626
NSN 5925-01-646-8052
NSN 5910-01-554-3152
NSN 5915-00-067-3357
NSN 6620-01-602-8402
NSN 6110-01-487-5174
NSN 6620-00-905-6590
NSN 6610-00-073-2685
NSN 2925-00-836-9543