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 5998-00-091-9167
NSN 5920-01-528-7196
NSN 5855-00-688-9954
NSN 5910-01-307-1971
NSN 6610-00-935-7131
NSN 6110-00-914-2223
NSN 5975-01-257-2082
NSN 5965-01-408-6766
NSN 6135-01-351-2690
NSN 6650-01-599-9849
NSN 5999-00-947-1428
NSN 5910-01-246-8755