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 5985-00-899-6329
NSN 6240-00-904-2122
NSN 4140-01-352-1787
NSN 5965-01-512-1815
NSN 5990-00-683-1095
NSN 5910-00-409-3036
NSN 5945-00-148-2850
NSN 2925-01-157-9204
NSN 5985-01-361-8982
NSN 6645-01-229-3369
NSN 5960-01-104-7839
NSN 6135-01-246-0308