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 6145-01-262-0069
NSN 6130-01-386-1430
NSN 6240-01-223-8514
NSN 5910-01-350-1984
NSN 5960-01-147-2303
NSN 6220-01-082-3370
NSN 6105-01-377-6284
NSN 6130-01-227-4805
NSN 5910-01-144-4732
NSN 5895-01-323-6413
NSN 6130-01-243-7001
NSN 5985-01-412-4726