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 5999-01-295-6298
NSN 6685-00-371-2163
NSN 5950-00-231-6204
NSN 5930-00-079-1304
NSN 6110-00-518-2998
NSN 5985-00-964-9673
NSN 5935-01-025-1917
NSN 6105-01-268-9380
NSN 5905-01-508-5120
NSN 5965-00-548-9656
NSN 2925-01-127-0167
NSN 6145-01-385-4838