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 6130-01-495-9327
NSN 5960-01-567-1096
NSN 5985-00-336-5813
NSN 6685-01-101-4195
NSN 5905-01-303-4551
NSN 7035-01-266-3490
NSN 5930-01-578-6075
NSN 5835-00-242-3763
NSN 5910-01-500-3124
NSN 6685-00-468-6961
NSN 6320-01-573-3215
NSN 6685-00-752-7952