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 5920-01-380-7129
NSN 6685-01-111-8352
NSN 5996-00-467-4196
NSN 5915-01-445-6577
NSN 5945-01-549-5466
NSN 5998-01-517-5643
NSN 6645-01-013-3852
NSN 5930-01-263-9074
NSN 5945-01-306-2817
NSN 5960-00-436-6269
NSN 5905-00-477-9292
NSN 5920-01-084-1612