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 5965-00-905-5197
NSN 6620-00-371-7109
NSN 5895-01-100-1825
NSN 5945-01-446-2890
NSN 5965-01-444-1322
NSN 6220-00-001-7941
NSN 5998-01-458-8945
NSN 6145-00-816-2005
NSN 6685-00-971-7406
NSN 6130-01-601-6908
NSN 2925-01-359-4027
NSN 5945-00-639-9848