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 6650-00-738-5418
NSN 7035-00-048-3723
NSN 5998-01-104-0963
NSN 5960-01-413-3877
NSN 6320-00-270-8222
NSN 6650-01-657-1395
NSN 5935-01-263-5201
NSN 6650-01-399-8552
NSN 6105-01-298-3636
NSN 7035-01-056-5350
NSN 6130-01-200-1836
NSN 5905-01-302-3987