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 6105-01-653-2867
NSN 6220-01-004-8909
NSN 5930-00-166-2193
NSN 5835-01-651-7208
NSN 6320-01-350-0320
NSN 6130-01-658-5257
NSN 6150-00-470-7136
NSN 5910-01-237-2449
NSN 6130-01-151-7811
NSN 5960-00-621-2055
NSN 5895-00-253-6747
NSN 5905-01-394-6455