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 6320-00-445-1187
NSN 5935-01-158-4788
NSN 5945-00-988-4241
NSN 6620-01-496-8567
NSN 5996-01-242-9710
NSN 5960-01-076-9930
NSN 5855-01-073-5508
NSN 5950-01-527-7911
NSN 5998-01-210-1186
NSN 6240-00-484-5947
NSN 5935-01-208-4156
NSN 5905-01-076-4109