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 5835-01-263-1293
NSN 5960-00-973-3104
NSN 6610-01-282-3225
NSN 5895-00-443-3823
NSN 6135-00-686-4777
NSN 5855-01-463-4839
NSN 5895-01-411-4368
NSN 5975-00-231-4841
NSN 5910-01-374-1101
NSN 6135-01-471-2803
NSN 5996-01-349-2140
NSN 6610-01-032-2890