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 6105-01-423-1417
NSN 5895-00-133-4099
NSN 5965-00-757-3403
NSN 6220-00-132-6854
NSN 5915-01-282-5969
NSN 5999-01-167-0838
NSN 5950-01-380-3203
NSN 6645-01-468-9841
NSN 6610-01-319-5039
NSN 6105-01-534-8263
NSN 6610-01-646-9101
NSN 5895-01-369-6879