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 6135-01-329-6022
NSN 5925-01-469-3103
NSN 6610-01-471-0175
NSN 4140-01-025-4911
NSN 6240-01-449-2883
NSN 5930-00-777-4299
NSN 6650-00-878-8909
NSN 6130-01-436-1099
NSN 6130-01-056-5251
NSN 6620-01-278-8028
NSN 6135-00-377-9165
NSN 5960-00-536-1535