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 6110-01-336-9546
NSN 5935-00-144-8017
NSN 5895-01-381-8340
NSN 5990-00-232-3965
NSN 6645-00-574-9712
NSN 6620-01-377-8178
NSN 6620-01-057-2580
NSN 5895-01-449-1371
NSN 5915-01-534-3397
NSN 6105-01-090-8904
NSN 6645-00-833-2395
NSN 5895-00-524-6782