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 7035-01-658-1623
NSN 6220-01-531-1402
NSN 7035-01-435-4009
NSN 5945-00-097-1046
NSN 6610-00-816-4998
NSN 6150-00-500-4712
NSN 6620-00-267-5273
NSN 5990-00-105-7831
NSN 5999-01-348-3487
NSN 5855-01-258-6180
NSN 5910-01-157-9362
NSN 5960-00-729-2673