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 6650-00-339-5458
NSN 5975-01-134-5332
NSN 6110-01-447-2770
NSN 5915-00-010-3011
NSN 6135-00-276-7625
NSN 5855-01-252-5424
NSN 6135-00-405-1989
NSN 5855-00-688-9954
NSN 5975-01-559-8780
NSN 5925-01-462-0068
NSN 6645-01-445-5235
NSN 6105-00-952-6547