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 6620-01-062-1662
NSN 6610-01-600-9464
NSN 5996-01-594-8747
NSN 5990-01-270-1015
NSN 5950-00-759-8837
NSN 6105-01-482-9607
NSN 5895-01-454-7625
NSN 5855-00-688-9954
NSN 6320-00-546-9249
NSN 5985-00-780-8515
NSN 5960-01-462-6267
NSN 6240-01-333-7826