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 6145-01-646-3784
NSN 5920-01-449-1236
NSN 2925-01-185-9144
NSN 5975-01-440-0773
NSN 4140-01-497-8075
NSN 6135-01-113-1507
NSN 6645-01-067-4393
NSN 5915-01-411-3544
NSN 6650-00-299-9681
NSN 5930-00-280-1513
NSN 6220-01-333-6544
NSN 6610-01-187-1748