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 7035-01-254-3044
NSN 6685-00-862-5431
NSN 6650-01-183-0711
NSN 6320-01-108-5933
NSN 6110-01-400-4207
NSN 6240-00-104-4662
NSN 6240-01-327-4945
NSN 6130-00-288-1886
NSN 5975-01-365-0127
NSN 5985-00-488-5316
NSN 2925-00-404-6461
NSN 6150-00-596-9882