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 2925-01-123-2235
NSN 6320-01-547-9877
NSN 6150-01-184-5224
NSN 5920-00-056-1612
NSN 6105-01-615-8060
NSN 6645-01-144-6415
NSN 6240-01-549-9408
NSN 5935-00-592-8105
NSN 5996-01-147-6054
NSN 5855-01-201-4857
NSN 5999-01-245-9762
NSN 6220-00-140-7875