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 5990-01-285-4633
NSN 6650-01-399-8552
NSN 5975-01-242-5551
NSN 6135-01-384-7155
NSN 6135-01-277-7907
NSN 5950-01-610-1080
NSN 5855-01-007-9541
NSN 5985-00-880-9429
NSN 5965-01-148-4979
NSN 6685-00-783-6614
NSN 5835-01-116-2369
NSN 5950-00-451-8668