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 5915-01-521-9486
NSN 5895-00-269-3848
NSN 5835-00-851-6470
NSN 6145-01-515-6296
NSN 6105-01-507-3012
NSN 6240-01-080-0888
NSN 5910-01-567-8265
NSN 6110-01-399-6165
NSN 5950-00-596-8102
NSN 6150-00-504-3056
NSN 6130-01-230-6348
NSN 5960-01-381-2478