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 5998-00-844-7056
NSN 5935-01-367-2245
NSN 6650-01-523-7026
NSN 6240-01-032-5034
NSN 6645-00-009-8811
NSN 6130-01-341-0222
NSN 6150-01-599-5613
NSN 6685-00-398-0341
NSN 6650-01-132-2697
NSN 6150-01-378-9960
NSN 5925-01-556-3137
NSN 7035-01-145-5059