75 durometer, as568-280
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 5920-00-124-0600
NSN 5835-00-501-2581
NSN 5895-01-564-8187
NSN 6130-00-475-0336
NSN 6220-01-400-4203
NSN 5920-01-304-5244
NSN 6685-01-089-8141
NSN 5855-01-328-2619
NSN 6145-00-803-2100
NSN 6645-01-398-6841
NSN 6650-00-852-2736
NSN 6220-01-285-3304