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 5930-00-262-9946
NSN 5945-01-608-8961
NSN 5996-01-437-7234
NSN 6685-01-620-3914
NSN 6320-00-681-1324
NSN 5975-01-435-8129
NSN 5999-01-299-8496
NSN 6220-01-546-6371
NSN 6620-00-111-0401
NSN 6220-00-039-6348
NSN 5895-01-422-1673
NSN 5915-01-574-6481