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 6110-00-456-2058
NSN 5855-00-688-9954
NSN 6685-01-547-0702
NSN 5999-01-431-7323
NSN 5960-01-073-6043
NSN 5930-00-211-1614
NSN 5915-00-954-5961
NSN 5920-00-866-3945
NSN 5950-01-188-0061
NSN 5975-01-131-2239
NSN 6685-01-480-2988
NSN 5925-00-435-8391