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 5998-01-312-5141
NSN 6240-00-372-4841
NSN 6240-00-163-5143
NSN 2925-01-254-3068
NSN 5999-00-935-3361
NSN 6645-01-391-6492
NSN 6130-00-028-6922
NSN 6320-01-544-6447
NSN 5950-01-358-3140
NSN 6145-01-499-7324
NSN 5905-01-533-7342
NSN 5945-01-270-9394