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 6105-01-426-7906
NSN 5965-00-857-6622
NSN 5975-01-204-5159
NSN 5855-01-225-5855
NSN 5950-01-510-3802
NSN 5999-01-274-0611
NSN 5990-01-365-6016
NSN 5895-01-089-0551
NSN 5895-00-295-3735
NSN 5998-01-187-6738
NSN 5960-00-104-5955
NSN 6150-00-116-7939