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 6130-01-062-1934
NSN 5950-01-266-1897
NSN 6130-01-394-5913
NSN 5855-01-550-5219
NSN 5910-00-247-7574
NSN 5945-00-879-3615
NSN 5905-00-242-0898
NSN 6220-01-423-0696
NSN 5855-01-369-4192
NSN 5835-01-054-9016
NSN 5895-00-616-4412
NSN 5920-00-925-1839