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 6150-01-308-4091
NSN 5996-01-531-2036
NSN 6130-00-106-3557
NSN 6110-00-127-9957
NSN 5998-00-291-4889
NSN 5985-01-145-6239
NSN 6685-01-547-7652
NSN 5905-01-112-0724
NSN 5960-01-586-5235
NSN 6135-01-412-0097
NSN 6650-00-336-0753
NSN 5835-00-386-4966