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 4140-00-577-3512
NSN 6620-00-203-9466
NSN 2925-01-504-2650
NSN 5895-01-535-4405
NSN 5965-00-612-0072
NSN 6645-00-067-5962
NSN 5950-01-580-0598
NSN 6135-00-347-0595
NSN 5945-01-093-5176
NSN 6320-01-250-0290
NSN 5996-01-015-2922
NSN 6240-00-398-0740