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 5950-01-232-1299
NSN 5996-00-382-3597
NSN 6240-00-467-7295
NSN 5998-01-131-7386
NSN 6685-01-287-1457
NSN 2925-01-099-7075
NSN 5835-01-040-1960
NSN 5910-01-332-8362
NSN 5910-01-564-4903
NSN 6685-00-099-9025
NSN 5855-01-650-1653
NSN 6110-01-439-7054