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 5998-00-178-1040
NSN 5975-01-242-9256
NSN 2925-00-678-5502
NSN 5950-01-444-0542
NSN 5965-01-325-7721
NSN 7035-00-541-8516
NSN 5960-01-074-6110
NSN 4140-01-133-1512
NSN 5965-01-622-3118
NSN 5925-01-141-5429
NSN 4140-00-851-2174
NSN 5996-00-270-0340