A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 6105-00-885-6517
NSN 5945-00-820-2098
NSN 7035-01-191-2822
NSN 5990-01-210-5474
NSN 5960-01-386-5770
NSN 7035-01-146-7096
NSN 5930-00-530-5193
NSN 5965-01-476-6146
NSN 5996-00-205-0211
NSN 5998-01-062-0789
NSN 4140-01-123-2182
NSN 6240-00-275-1950