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 5930-01-302-3831
NSN 6220-00-925-0522
NSN 5960-01-157-7009
NSN 5998-01-508-6675
NSN 6135-00-613-1068
NSN 5999-01-643-5948
NSN 5999-00-244-6375
NSN 5975-01-423-2789
NSN 2925-01-354-1752
NSN 6135-01-036-3495
NSN 6320-00-422-1773
NSN 6645-01-555-4356