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 5895-01-607-7544
NSN 5910-01-124-7198
NSN 5990-00-636-4218
NSN 5895-01-502-5600
NSN 5950-01-482-9344
NSN 5999-01-378-7196
NSN 6240-01-604-9172
NSN 6645-00-051-6673
NSN 5950-01-225-3352
NSN 6150-00-939-8961
NSN 5998-00-175-9007
NSN 5996-01-172-1469