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 5950-01-584-4755
NSN 6135-01-213-7339
NSN 5965-00-147-3070
NSN 5915-00-153-4446
NSN 6150-00-625-8031
NSN 5835-01-143-9143
NSN 5996-01-173-9789
NSN 5975-01-607-7047
NSN 6150-00-978-7338
NSN 6610-01-613-1831
NSN 5985-01-634-0635
NSN 6130-01-071-2030