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 6320-01-449-1014
NSN 6220-01-213-6154
NSN 5855-01-162-5251
NSN 5945-01-550-1465
NSN 2925-01-074-5303
NSN 5996-01-420-9679
NSN 6220-00-058-5002
NSN 5999-00-740-8259
NSN 2925-00-288-1394
NSN 5935-01-249-0951
NSN 5945-01-431-8124
NSN 6620-01-578-1984