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 4140-01-243-5817
NSN 6145-00-653-2448
NSN 5930-01-413-8954
NSN 5835-01-166-7420
NSN 6145-00-917-6560
NSN 5915-00-435-0371
NSN 5975-01-215-1205
NSN 4140-00-008-4912
NSN 7035-01-061-6424
NSN 6220-01-564-3159
NSN 5930-01-427-9851
NSN 6145-01-617-6866