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 5920-00-004-0274
NSN 6645-00-077-1805
NSN 5910-00-318-6885
NSN 5915-01-268-0930
NSN 5975-00-458-3038
NSN 5975-00-904-6348
NSN 5990-01-631-5537
NSN 5930-01-004-7239
NSN 5925-00-681-4952
NSN 6150-01-499-1385
NSN 5990-01-604-0862
NSN 6110-01-616-0546