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 5925-00-823-6138
NSN 5855-00-494-9581
NSN 5935-00-255-0138
NSN 2925-01-650-3412
NSN 5999-01-206-5852
NSN 6240-01-177-9361
NSN 5910-00-932-3229
NSN 5855-01-515-9547
NSN 5895-00-242-9959
NSN 5965-01-053-3434
NSN 5945-01-213-0731
NSN 5985-00-847-1744