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 6145-01-121-4371
NSN 5925-01-222-4885
NSN 5975-00-461-4833
NSN 5985-01-115-4868
NSN 5975-01-214-4577
NSN 6220-00-408-6182
NSN 5950-01-020-5621
NSN 5905-00-565-0020
NSN 5895-01-387-0449
NSN 4140-01-025-4911
NSN 5985-01-507-3878
NSN 6105-01-233-9254