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 6135-01-151-2705
NSN 5990-01-447-7779
NSN 6150-01-461-3335
NSN 5965-01-448-9585
NSN 6135-01-442-7275
NSN 6145-01-222-6009
NSN 6110-01-154-2229
NSN 5915-01-487-3883
NSN 5835-00-368-4182
NSN 6240-01-418-0282
NSN 6650-01-515-0391
NSN 6650-01-436-3478