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 5999-01-629-7211
NSN 5950-00-666-1887
NSN 2925-00-928-5931
NSN 5930-01-085-6257
NSN 6145-00-455-7237
NSN 6105-01-080-1118
NSN 5960-01-050-0264
NSN 5960-01-426-4242
NSN 5920-00-267-3109
NSN 5999-01-408-2603
NSN 5965-01-580-5297
NSN 5950-01-502-9565