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 5915-01-065-7183
NSN 5915-00-949-1223
NSN 5910-01-168-1938
NSN 6110-00-755-7647
NSN 6610-01-327-3187
NSN 6650-01-615-8806
NSN 6130-00-511-5568
NSN 5935-01-337-3451
NSN 5996-00-769-5112
NSN 5960-01-315-6993
NSN 6150-01-032-4556
NSN 6685-00-621-5011