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 2925-01-244-3016
NSN 6685-01-534-3725
NSN 5930-01-567-5101
NSN 5945-01-568-2710
NSN 6240-00-258-2389
NSN 6150-00-823-5590
NSN 6110-01-004-9870
NSN 5930-00-502-6769
NSN 5945-01-359-5262
NSN 5895-01-417-2700
NSN 6220-00-408-6182
NSN 6130-01-069-2514