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 6135-01-482-3989
NSN 5835-00-126-2961
NSN 5960-00-583-4902
NSN 6685-01-424-0975
NSN 6135-01-466-3980
NSN 5945-01-573-2655
NSN 6240-01-564-9098
NSN 6220-01-203-7001
NSN 5930-00-155-5917
NSN 6145-01-451-4599
NSN 6685-01-108-2411
NSN 6130-00-541-8468