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 5975-01-287-6413
NSN 6110-01-139-6730
NSN 5935-01-235-1257
NSN 4140-00-479-3949
NSN 5935-01-121-2785
NSN 6685-01-214-8688
NSN 5999-00-377-3765
NSN 6145-00-879-9618
NSN 6135-01-100-3593
NSN 5905-00-006-1331
NSN 6145-00-351-4539
NSN 6130-01-408-3300