O-ring is fiberglass and moly-filled ptfe.
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 6650-01-447-2858
NSN 6240-00-527-8614
NSN 6610-00-488-9528
NSN 6150-00-951-9827
NSN 6610-01-032-5335
NSN 5935-00-133-3369
NSN 6685-00-823-7790
NSN 5930-00-401-7953
NSN 5895-01-630-3514
NSN 2925-00-690-8763
NSN 5990-01-015-5968
NSN 6240-01-633-9357