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 6240-00-703-6614
NSN 5990-01-621-6969
NSN 7035-01-633-9537
NSN 6135-01-620-1306
NSN 6610-00-019-5460
NSN 5895-00-518-4954
NSN 5905-01-290-7814
NSN 5950-00-163-2382
NSN 6110-01-560-4780
NSN 6150-01-254-5692
NSN 5945-00-812-5069
NSN 5855-01-178-6396