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 6220-01-632-8217
NSN 6135-00-299-6918
NSN 5915-01-391-7784
NSN 6240-01-055-9696
NSN 5950-01-650-1620
NSN 6610-01-503-0153
NSN 5930-01-393-3873
NSN 6145-01-625-5955
NSN 6135-01-068-0119
NSN 5920-01-064-9114
NSN 2925-00-918-0859
NSN 7035-01-091-7481