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 2925-00-293-7213
NSN 6610-01-381-3181
NSN 6150-01-344-4403
NSN 5895-01-212-5424
NSN 5930-01-420-9755
NSN 5990-01-541-7671
NSN 6240-01-556-7096
NSN 5990-01-261-2962
NSN 6130-00-925-3926
NSN 6610-01-654-4685
NSN 6135-01-010-0891
NSN 5895-01-348-1107