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 5985-01-151-2829
NSN 6220-01-395-1314
NSN 5895-01-452-1430
NSN 6685-01-177-9447
NSN 6220-00-712-1779
NSN 5990-01-027-0568
NSN 6220-01-186-6431
NSN 6105-01-554-2271
NSN 5950-01-014-7937
NSN 5998-01-151-0871
NSN 5985-00-288-1861
NSN 6240-00-926-4462