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 5920-00-025-6209
NSN 5960-01-351-5074
NSN 6150-00-201-4959
NSN 6150-00-832-3364
NSN 5930-01-501-5611
NSN 6110-00-257-1446
NSN 5895-00-706-8304
NSN 5985-01-566-3447
NSN 5925-00-045-9095
NSN 5996-01-508-4599
NSN 6620-00-826-7238
NSN 5998-01-513-8422