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 5996-00-296-4470
NSN 6130-01-250-9464
NSN 6135-00-284-1406
NSN 5930-00-195-1640
NSN 5935-00-082-7325
NSN 5835-01-623-3328
NSN 5945-01-314-1441
NSN 5925-01-411-5101
NSN 6240-01-425-1939
NSN 5915-00-707-2297
NSN 5960-01-095-6873
NSN 6150-01-148-7826