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 5996-01-327-0220
NSN 7035-00-238-3662
NSN 6610-00-531-6153
NSN 5950-01-541-9885
NSN 4140-00-613-9209
NSN 5996-01-464-0548
NSN 7035-01-481-8247
NSN 6130-01-444-1788
NSN 6110-01-487-4532
NSN 5930-00-623-2602
NSN 5950-00-919-6146
NSN 6145-00-164-6952