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 5999-01-076-4206
NSN 6610-01-550-1581
NSN 6645-00-899-1235
NSN 5935-00-659-1846
NSN 6110-00-731-3801
NSN 5910-01-277-6801
NSN 6220-01-430-4268
NSN 5855-01-549-8494
NSN 5935-00-200-1017
NSN 5960-00-539-7914
NSN 6105-01-518-1971
NSN 5925-01-649-4677