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 5930-00-423-7145
NSN 5950-01-617-8230
NSN 5996-01-172-5354
NSN 5835-00-905-7165
NSN 6145-00-493-4073
NSN 5855-01-425-1330
NSN 6130-01-472-2066
NSN 6220-01-189-7039
NSN 6240-00-689-8504
NSN 5998-01-618-5112
NSN 6610-00-641-3015
NSN 5990-01-544-4360