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 5998-01-563-6263
NSN 6620-01-025-1443
NSN 5950-01-046-8960
NSN 5975-01-566-8129
NSN 6130-01-474-9355
NSN 4140-00-299-6328
NSN 6220-01-343-7050
NSN 6220-01-207-8068
NSN 5855-01-400-1590
NSN 5895-01-458-4831
NSN 5985-01-192-0142
NSN 5950-00-848-2141