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 4140-00-197-9712
NSN 5996-00-358-6257
NSN 5998-01-157-4139
NSN 5950-01-528-5170
NSN 5975-00-912-0619
NSN 6610-00-929-6936
NSN 6150-01-395-8518
NSN 6145-00-360-7760
NSN 6145-01-222-0907
NSN 6150-01-200-7616
NSN 5920-01-150-3499
NSN 5998-01-539-9988