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 6105-01-388-1926
NSN 5905-00-116-6534
NSN 5925-01-150-1830
NSN 6145-01-650-5713
NSN 5998-01-257-9236
NSN 5895-01-423-8200
NSN 6620-01-433-7952
NSN 5999-00-919-8524
NSN 5960-01-315-3021
NSN 6320-00-456-2092
NSN 5855-01-259-0995
NSN 5920-00-009-8186