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 5945-01-166-9998
NSN 5985-01-208-6398
NSN 6105-01-262-9537
NSN 5915-01-420-1578
NSN 5998-01-399-1957
NSN 5895-00-447-0550
NSN 5895-01-437-6572
NSN 5975-01-025-9990
NSN 5920-01-596-2792
NSN 6645-00-226-0657
NSN 5905-00-266-0948
NSN 5915-01-290-9833