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 4140-01-253-0372
NSN 6145-00-261-4527
NSN 5835-00-233-6327
NSN 5975-01-500-0566
NSN 5975-00-117-9515
NSN 5996-00-408-3387
NSN 5855-01-379-3160
NSN 5920-01-277-8484
NSN 5945-01-474-5583
NSN 6135-01-092-4734
NSN 6240-01-288-5163
NSN 5996-01-221-6711