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 4140-01-536-9451
NSN 5905-01-205-4952
NSN 5910-00-366-6900
NSN 5910-00-892-3187
NSN 6645-01-421-2445
NSN 5910-00-409-5542
NSN 6130-01-549-0834
NSN 6620-00-580-1462
NSN 5925-00-521-2527
NSN 6610-01-123-7292
NSN 6685-01-370-0586
NSN 4140-01-538-2145