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 5895-00-251-8091
NSN 6645-01-623-7483
NSN 6610-01-043-5162
NSN 5925-01-619-6534
NSN 5905-01-376-5271
NSN 6105-00-470-2754
NSN 5985-00-144-8170
NSN 5905-01-600-3189
NSN 5920-01-469-3058
NSN 6220-00-051-4198
NSN 6610-00-264-0961
NSN 5930-01-176-7226