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 5985-00-160-5464
NSN 6150-01-110-9377
NSN 5895-01-581-2859
NSN 5975-01-382-5787
NSN 5920-01-515-9738
NSN 5990-01-543-6301
NSN 6620-01-271-6192
NSN 5965-01-073-6047
NSN 6610-00-902-7505
NSN 5990-01-014-1280
NSN 6620-01-597-4680
NSN 6620-01-322-8382