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 6610-01-140-9608
NSN 6145-01-348-8602
NSN 5835-01-386-0110
NSN 6320-00-857-4073
NSN 5985-01-375-3143
NSN 5996-00-272-2560
NSN 6150-01-575-9064
NSN 6610-01-165-0232
NSN 5999-01-012-3546
NSN 6130-00-385-1708
NSN 5945-00-069-7114
NSN 6105-01-532-2731