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 5895-01-363-7150
NSN 6135-01-531-1413
NSN 5910-01-068-3381
NSN 5999-01-424-0713
NSN 5975-01-261-4965
NSN 6650-01-258-0811
NSN 5910-01-215-1374
NSN 5999-01-141-5705
NSN 5895-00-265-0159
NSN 6145-00-849-3897
NSN 5895-00-073-5071
NSN 5975-01-028-6522