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 5855-01-618-9749
NSN 5996-01-023-8370
NSN 5895-01-499-5623
NSN 5999-00-040-1645
NSN 6240-00-034-5909
NSN 5985-00-074-1002
NSN 5945-00-221-9611
NSN 6620-01-014-7192
NSN 6610-01-078-8696
NSN 6650-01-420-6572
NSN 5910-00-449-1790
NSN 5998-00-700-0590