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 2925-01-347-9346
NSN 5855-01-493-9486
NSN 6650-01-535-6287
NSN 5930-01-301-1806
NSN 5855-01-246-0342
NSN 6610-01-384-1587
NSN 4140-01-604-9981
NSN 6610-00-937-3798
NSN 5910-00-490-3943
NSN 5950-01-485-0246
NSN 7035-00-922-5700
NSN 5950-01-348-3173