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 5935-01-502-6012
NSN 5930-00-089-9126
NSN 6130-00-229-5530
NSN 5999-01-019-8731
NSN 5960-01-084-7381
NSN 5999-01-500-1578
NSN 5855-00-586-6255
NSN 7035-01-145-5059
NSN 5930-01-203-1717
NSN 6620-00-102-3950
NSN 5990-01-054-3332
NSN 5895-01-623-7267