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 7035-01-469-5854
NSN 5935-01-568-7851
NSN 5925-01-533-0656
NSN 6650-01-041-0296
NSN 5895-01-330-3534
NSN 5910-01-549-3073
NSN 2925-01-327-3069
NSN 5960-01-544-1273
NSN 5925-01-480-0730
NSN 5915-00-530-5067
NSN 5990-01-215-0590
NSN 5925-01-511-0220