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 6130-01-314-5274
NSN 5835-01-185-1102
NSN 5950-01-382-6989
NSN 6130-01-428-4459
NSN 5930-01-080-4828
NSN 5975-01-634-0678
NSN 5930-01-369-6256
NSN 6320-00-242-3300
NSN 4140-01-544-9807
NSN 6220-01-025-3511
NSN 6110-01-224-1102
NSN 6320-01-072-2073