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 5895-01-431-0459
NSN 7035-01-282-7124
NSN 5905-01-485-1228
NSN 5998-01-167-7599
NSN 6145-00-355-6498
NSN 5915-00-394-6523
NSN 5998-00-970-9133
NSN 5925-00-295-6255
NSN 6130-01-440-1314
NSN 5925-01-423-7429
NSN 5950-01-040-4155
NSN 5999-00-373-3158