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 5960-01-452-1907
NSN 6610-00-904-4839
NSN 5910-01-209-0636
NSN 5996-01-189-9480
NSN 6610-01-336-2787
NSN 6320-01-582-6668
NSN 7035-01-088-6415
NSN 6150-01-296-2123
NSN 6130-00-364-7801
NSN 6110-00-200-8465
NSN 5930-01-089-8615
NSN 6145-01-470-3933