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 5905-00-250-2158
NSN 5905-01-284-7762
NSN 2925-00-936-0188
NSN 5920-01-621-2605
NSN 6110-01-549-9307
NSN 6620-01-508-1996
NSN 6110-00-356-5388
NSN 5920-00-136-9459
NSN 6320-01-421-3777
NSN 5895-00-288-5878
NSN 6110-01-631-4165
NSN 6610-01-398-2554