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 6110-01-618-7462
NSN 7035-00-361-5975
NSN 5920-00-993-1799
NSN 6620-00-500-0041
NSN 5999-01-622-5319
NSN 6220-00-255-5652
NSN 7035-01-518-2807
NSN 5999-00-676-2020
NSN 5965-01-435-6644
NSN 6220-00-827-0227
NSN 6150-01-037-9628
NSN 6650-01-408-5089