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 6685-00-564-9800
NSN 6645-00-292-5053
NSN 6130-00-153-3136
NSN 5960-01-314-1822
NSN 6610-01-593-2428
NSN 5950-00-522-9618
NSN 6150-01-416-6926
NSN 4140-01-326-7033
NSN 5855-00-149-0766
NSN 6220-01-552-4395
NSN 6110-00-051-7949
NSN 5910-01-370-4823