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 2925-00-105-3907
NSN 6145-01-471-1823
NSN 6240-00-531-3187
NSN 6145-01-030-1960
NSN 5965-00-284-6718
NSN 6110-01-311-5655
NSN 6220-01-058-3457
NSN 6145-00-412-1292
NSN 6620-01-477-3720
NSN 5975-01-442-8767
NSN 5960-01-313-0212
NSN 5920-01-650-1820