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 6650-00-904-9485
NSN 5915-01-529-0577
NSN 5920-01-516-3847
NSN 5999-01-082-1878
NSN 4140-01-549-1995
NSN 5925-01-304-5343
NSN 6220-01-218-9214
NSN 5930-01-565-1104
NSN 6105-00-925-5372
NSN 6620-00-727-6133
NSN 5905-00-899-7896
NSN 5965-01-522-0404