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 2925-00-179-7143
NSN 6610-00-590-8869
NSN 5935-00-238-7237
NSN 6685-01-086-0246
NSN 6620-01-208-1092
NSN 5895-00-532-2376
NSN 5985-01-310-3121
NSN 4140-00-318-7427
NSN 5996-01-440-9660
NSN 5950-01-343-2288
NSN 5985-01-384-3317
NSN 6110-01-326-0402