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 6150-00-099-6919
NSN 6685-01-232-3069
NSN 5855-00-885-8452
NSN 6645-01-656-3843
NSN 5950-01-631-0937
NSN 5998-01-492-5317
NSN 6620-00-424-4335
NSN 5990-01-094-7740
NSN 5835-01-162-8353
NSN 5905-01-250-2608
NSN 5960-01-500-6615
NSN 5915-01-213-1000