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 5855-01-386-7136
NSN 6240-01-425-1160
NSN 6620-00-025-1889
NSN 5835-00-529-6307
NSN 5935-01-571-8584
NSN 5835-00-111-2953
NSN 5930-01-058-8233
NSN 6620-01-094-6549
NSN 6150-00-419-4115
NSN 5905-01-643-5745
NSN 6220-01-063-5566
NSN 7035-00-541-8516