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 6105-01-278-9830
NSN 6610-01-010-7108
NSN 6220-00-165-7095
NSN 6240-01-043-9074
NSN 6240-01-287-1328
NSN 5925-01-345-1422
NSN 5985-00-808-2062
NSN 5925-01-355-6523
NSN 5965-00-244-8428
NSN 6105-01-571-5862
NSN 6150-01-183-3134
NSN 6220-01-608-3965