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 5905-01-517-1651
NSN 6610-01-092-9846
NSN 5996-01-597-9130
NSN 6105-01-500-3042
NSN 6145-00-411-7948
NSN 5975-01-465-0815
NSN 4140-01-463-9299
NSN 6240-00-978-5020
NSN 6220-00-419-0635
NSN 5999-01-206-4657
NSN 5895-01-351-3203
NSN 5990-00-428-1895