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 5935-00-603-4214
NSN 5925-01-444-5274
NSN 6110-01-473-0848
NSN 5855-01-593-2549
NSN 5950-00-269-2698
NSN 5950-01-508-3109
NSN 6105-00-222-8315
NSN 6220-01-011-8569
NSN 5999-01-063-6189
NSN 5935-01-029-4105
NSN 6320-01-449-1014
NSN 6105-01-108-4734