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 5960-01-315-6993
NSN 5910-01-032-4412
NSN 5915-01-141-6726
NSN 5990-01-419-0661
NSN 5895-00-518-4954
NSN 6150-01-297-5110
NSN 5985-01-462-1845
NSN 5905-01-046-5290
NSN 6130-01-590-0487
NSN 5960-01-582-6167
NSN 6110-01-249-5445
NSN 6220-00-531-6430