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 5945-01-295-8450
NSN 6320-01-578-6006
NSN 6105-01-075-8658
NSN 5985-01-381-0113
NSN 5985-00-382-7242
NSN 5835-00-378-1429
NSN 2925-00-852-6708
NSN 5960-01-599-9821
NSN 6105-00-111-3353
NSN 6150-00-944-3545
NSN 6645-00-117-9839
NSN 6145-00-987-3401