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 5935-00-821-4291
NSN 6220-01-197-7680
NSN 6130-00-554-7852
NSN 5985-01-359-2605
NSN 5965-00-852-6258
NSN 5855-01-165-2177
NSN 6220-01-018-8346
NSN 5985-01-045-5206
NSN 6145-01-556-0152
NSN 5950-01-430-3338
NSN 5915-01-653-3179
NSN 5945-01-483-1316