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 6110-01-376-4872
NSN 5925-00-469-7683
NSN 5975-00-148-0914
NSN 5975-01-612-7372
NSN 5975-01-515-8822
NSN 5935-00-511-6938
NSN 5915-01-437-8858
NSN 5999-01-087-8755
NSN 5925-01-269-2761
NSN 6610-01-139-0174
NSN 5975-01-286-5850
NSN 5960-01-073-6043