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 5855-00-631-4565
NSN 5965-00-486-7907
NSN 6145-00-622-4634
NSN 4140-01-295-8264
NSN 5895-01-250-2813
NSN 5915-01-118-1414
NSN 5855-01-654-7314
NSN 6135-01-496-5810
NSN 5965-01-265-6814
NSN 5915-01-196-6016
NSN 6150-01-567-7841
NSN 5905-01-057-8400