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 5895-00-360-0117
NSN 6620-01-042-2046
NSN 5935-00-979-9079
NSN 5998-01-291-0414
NSN 6130-01-479-3511
NSN 6135-00-078-9931
NSN 5895-01-634-0630
NSN 5998-00-980-5779
NSN 6240-01-552-3956
NSN 5985-01-537-0318
NSN 6685-01-117-1968
NSN 6685-00-678-2244