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 5945-01-032-5328
NSN 5920-01-165-2909
NSN 5930-00-347-5238
NSN 5905-01-048-1114
NSN 7035-01-042-5308
NSN 5945-01-473-0653
NSN 5998-00-967-0166
NSN 5999-01-296-7610
NSN 5975-01-518-4172
NSN 6130-01-633-8541
NSN 6685-01-336-2780
NSN 5910-01-432-0126