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 6135-01-386-5709
NSN 6620-00-658-6588
NSN 5950-00-482-1428
NSN 6145-00-542-6992
NSN 5915-01-160-1861
NSN 6150-01-330-8278
NSN 5975-01-235-1962
NSN 5960-01-564-5044
NSN 6130-00-820-4986
NSN 5910-00-156-7293
NSN 6150-01-289-4142
NSN 5996-01-153-2359