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 5925-01-184-0633
NSN 6130-01-100-4682
NSN 6240-00-578-6763
NSN 5925-01-409-2616
NSN 5910-01-384-3808
NSN 6320-00-343-1798
NSN 5960-01-350-2925
NSN 6240-01-225-8518
NSN 2925-01-448-2880
NSN 5950-01-539-2089
NSN 5935-01-453-2214
NSN 7035-00-238-3662