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 6110-01-043-5647
NSN 5950-00-033-4084
NSN 5960-00-131-6744
NSN 6105-00-533-9650
NSN 5996-01-614-6669
NSN 5999-01-006-9942
NSN 5950-00-839-1291
NSN 5998-01-062-2797
NSN 5930-00-456-6698
NSN 5950-00-222-9280
NSN 5935-00-430-6334
NSN 5999-00-945-4104