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 5920-01-279-8079
NSN 6645-01-023-8020
NSN 7035-01-034-6183
NSN 5835-01-572-1284
NSN 5835-01-536-5739
NSN 6145-01-049-2360
NSN 5925-01-355-2420
NSN 5999-01-146-5436
NSN 5975-01-046-3658
NSN 5990-00-883-1800
NSN 6105-01-050-2473
NSN 5855-01-258-6180