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 6620-00-658-6588
NSN 5855-00-631-4565
NSN 5996-01-190-5160
NSN 5945-01-348-0103
NSN 6320-01-236-9562
NSN 5920-01-522-8211
NSN 5920-00-225-4758
NSN 6135-00-930-5372
NSN 6620-00-646-9474
NSN 5960-00-539-7914
NSN 5895-00-894-0894
NSN 5960-01-231-9119