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 5950-01-086-4635
NSN 5855-01-472-8320
NSN 5930-00-666-2971
NSN 5905-00-230-9635
NSN 5930-01-608-6086
NSN 6320-01-380-7372
NSN 6145-01-441-4239
NSN 6220-01-159-9080
NSN 6650-00-547-4557
NSN 5999-01-473-5692
NSN 5915-01-602-9324
NSN 5905-01-069-3987