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 5999-00-136-7120
NSN 5975-01-158-1061
NSN 5975-01-063-7577
NSN 4140-01-281-4058
NSN 6135-01-508-6083
NSN 6685-01-634-0611
NSN 6110-01-368-3483
NSN 5985-00-254-6160
NSN 5960-01-551-7034
NSN 6645-01-070-1210
NSN 5920-01-394-8735
NSN 5910-01-625-3835