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 5996-00-525-1777
NSN 5975-01-097-2422
NSN 5895-01-037-5841
NSN 5975-01-328-5133
NSN 4140-01-549-6443
NSN 6110-01-630-5572
NSN 5855-01-578-8298
NSN 6150-01-461-2727
NSN 6110-01-460-9078
NSN 6610-01-632-8561
NSN 6685-01-500-6635
NSN 6620-01-440-1579