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 5965-01-147-5847
NSN 5999-01-315-8105
NSN 5960-00-575-5116
NSN 5895-01-065-5799
NSN 6240-00-551-3144
NSN 6110-01-599-4794
NSN 5935-01-441-9578
NSN 5996-01-011-3803
NSN 6105-00-739-7957
NSN 5975-00-631-0120
NSN 4140-01-039-3638
NSN 2925-00-155-8091