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 5935-01-232-7344
NSN 5895-00-764-4206
NSN 5999-01-605-1024
NSN 5895-00-299-1601
NSN 5985-00-832-0609
NSN 5935-00-269-5516
NSN 6220-00-244-2040
NSN 6150-00-199-8764
NSN 5855-01-132-5139
NSN 5930-01-244-7403
NSN 6135-01-534-3007
NSN 6105-00-660-8882