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 5920-01-323-2209
NSN 6105-01-653-5697
NSN 6620-00-325-4693
NSN 5920-01-567-7502
NSN 5930-01-044-3835
NSN 2925-01-235-7507
NSN 5990-01-084-0807
NSN 6135-01-127-0173
NSN 5950-01-050-8445
NSN 5895-00-715-0896
NSN 6150-01-233-1113
NSN 5999-01-514-2553