Commercial
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 6320-01-418-2611
NSN 6645-01-133-4440
NSN 5990-00-432-0649
NSN 5945-01-321-0226
NSN 5950-00-816-9913
NSN 5835-01-442-6482
NSN 5835-01-193-6192
NSN 2925-00-993-7715
NSN 6220-00-657-9795
NSN 5925-00-369-7747
NSN 5975-00-009-2725
NSN 5855-01-442-8781