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 5950-01-315-8837
NSN 6645-01-373-2262
NSN 5905-00-959-5781
NSN 5999-01-591-8294
NSN 5935-00-518-5027
NSN 6220-00-299-6157
NSN 5960-01-624-1170
NSN 5965-00-929-6173
NSN 5905-01-485-1228
NSN 5915-01-261-5144
NSN 5996-01-208-1726
NSN 5960-00-270-3324