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 6105-00-020-0089
NSN 6685-00-860-2232
NSN 5990-00-970-1179
NSN 5935-01-542-4884
NSN 6220-01-493-7932
NSN 5895-00-776-5415
NSN 6240-00-480-7896
NSN 6320-00-270-8222
NSN 5998-01-483-1426
NSN 6150-01-501-5101
NSN 5915-01-185-7510
NSN 6145-00-393-4083