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 6150-01-164-5237
NSN 5965-01-492-4728
NSN 6135-00-347-0595
NSN 5835-01-368-4015
NSN 5935-01-295-4935
NSN 6685-01-592-2524
NSN 5905-01-391-7179
NSN 6150-00-906-3834
NSN 5895-00-195-2751
NSN 6320-01-272-7072
NSN 6610-01-010-9392
NSN 6145-00-192-7215