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 6620-01-062-7163
NSN 6685-01-158-6081
NSN 6105-01-539-1990
NSN 6320-01-536-3077
NSN 5925-01-170-2306
NSN 6620-01-067-8336
NSN 5920-01-467-5568
NSN 5996-01-029-8011
NSN 5905-01-476-6013
NSN 7035-01-049-6776
NSN 5920-01-541-6248
NSN 6135-01-340-9731