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 6620-01-355-4339
NSN 6240-01-145-4916
NSN 5920-01-305-5191
NSN 5985-01-146-2575
NSN 5975-01-218-4407
NSN 6645-00-241-3280
NSN 5996-00-134-8760
NSN 6135-01-483-1501
NSN 2925-01-466-0892
NSN 5975-01-154-0074
NSN 5998-00-274-6328
NSN 5990-00-808-2184