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 6110-01-329-2206
NSN 5998-01-654-5063
NSN 5975-00-288-5877
NSN 5895-01-500-9931
NSN 6610-00-285-5366
NSN 6150-01-223-8463
NSN 6645-00-064-9839
NSN 6650-01-519-6198
NSN 5915-01-184-6270
NSN 6145-00-242-8043
NSN 2925-00-350-0348
NSN 6320-01-064-0372