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 6645-00-802-7991
NSN 5930-00-144-4994
NSN 6320-01-268-3072
NSN 2925-01-073-8223
NSN 5975-00-923-5227
NSN 6150-01-073-4242
NSN 6135-01-630-3158
NSN 6105-01-350-2517
NSN 2925-00-099-4030
NSN 5910-01-217-9764
NSN 6110-00-705-1368
NSN 5910-01-549-1932