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 5935-01-335-7269
NSN 5895-01-462-0027
NSN 6145-01-420-1836
NSN 5965-01-304-7179
NSN 5930-00-188-9880
NSN 5998-01-012-7113
NSN 6220-00-807-3432
NSN 5996-00-930-0150
NSN 6620-01-517-0014
NSN 5950-01-429-8186
NSN 5855-00-107-7993
NSN 6110-00-947-4127