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 6105-01-206-6434
NSN 5975-00-189-0093
NSN 5930-01-186-3292
NSN 5935-00-995-4742
NSN 6150-00-765-8394
NSN 6105-00-826-1359
NSN 5975-01-346-6740
NSN 5999-00-105-5515
NSN 5915-01-251-4986
NSN 5996-01-040-7610
NSN 4140-00-660-8699
NSN 5905-00-183-9344