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 7035-01-080-8742
NSN 5935-00-527-3826
NSN 5960-00-927-6716
NSN 5999-00-269-5320
NSN 4140-00-635-2754
NSN 6645-01-384-7791
NSN 5998-01-031-7535
NSN 5945-00-597-5722
NSN 5990-01-124-4291
NSN 5835-01-036-4951
NSN 5895-01-254-9967
NSN 5835-01-193-6192