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 5910-01-159-4118
NSN 5925-01-057-8188
NSN 6110-01-241-8816
NSN 6650-01-074-8232
NSN 5920-01-064-0939
NSN 5950-01-495-7011
NSN 6105-01-057-2794
NSN 5945-01-510-3530
NSN 5905-01-165-2888
NSN 6320-00-098-2858
NSN 5855-01-398-0090
NSN 5965-01-133-3985