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 5975-01-552-8237
NSN 6130-01-221-4444
NSN 5905-00-426-7098
NSN 6240-01-040-2794
NSN 5835-00-759-1109
NSN 6620-00-511-3355
NSN 6650-00-470-7498
NSN 7035-00-902-8995
NSN 5945-01-519-3933
NSN 5950-01-561-6177
NSN 6645-01-622-6161
NSN 5999-01-143-1785