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 5925-01-201-0098
NSN 6320-01-255-2096
NSN 6610-00-313-0660
NSN 6150-00-241-9676
NSN 5915-00-259-3772
NSN 5895-00-637-2658
NSN 6110-01-592-9264
NSN 2925-00-456-7627
NSN 5945-01-285-2431
NSN 6110-00-260-0130
NSN 7035-01-633-9537
NSN 5915-01-107-0910