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 5855-00-407-2801
NSN 5935-01-414-2647
NSN 6240-01-444-9956
NSN 5950-01-079-6613
NSN 6650-01-158-4236
NSN 6110-01-065-7877
NSN 5920-00-274-6929
NSN 5950-01-182-9170
NSN 5999-01-055-5243
NSN 5915-00-286-3272
NSN 6150-00-518-4558
NSN 7035-00-173-2281