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 6685-01-203-2160
NSN 6110-00-294-7648
NSN 5999-00-553-9831
NSN 7035-01-400-3666
NSN 6110-01-209-6465
NSN 6145-01-231-8476
NSN 6105-01-435-4376
NSN 5950-01-336-4732
NSN 5915-01-618-2870
NSN 5930-00-661-2280
NSN 5960-01-573-6483
NSN 5895-00-209-9766