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 5998-01-303-4376
NSN 6145-00-952-7486
NSN 6105-01-468-5605
NSN 6645-01-466-9477
NSN 6320-01-343-8191
NSN 6685-00-467-0608
NSN 5905-01-137-6332
NSN 5920-01-354-1598
NSN 6620-01-422-7012
NSN 6620-01-139-5553
NSN 6135-00-461-3590
NSN 5910-01-366-5475