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 5920-00-456-5211
NSN 5905-00-753-0299
NSN 6320-01-514-6141
NSN 6685-01-089-9606
NSN 5950-00-542-0627
NSN 5975-01-567-4124
NSN 5999-00-765-0866
NSN 6620-00-905-6590
NSN 6610-00-458-3847
NSN 6610-01-492-9888
NSN 4140-01-032-3705
NSN 6685-01-319-0999