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 5990-00-144-3243
NSN 6135-01-383-1910
NSN 5950-01-023-7692
NSN 4140-00-767-8166
NSN 6645-01-464-4937
NSN 6650-00-658-9627
NSN 6620-01-529-2518
NSN 6110-01-360-6507
NSN 5996-01-076-7374
NSN 5998-00-293-6286
NSN 4140-01-216-3417
NSN 6685-01-510-9575