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 5950-01-386-5830
NSN 6610-01-110-3802
NSN 5930-01-641-1287
NSN 5895-01-318-1022
NSN 6130-00-171-7400
NSN 5835-01-580-0446
NSN 6135-00-334-4500
NSN 5915-01-085-1762
NSN 6610-01-213-9288
NSN 5935-00-619-3687
NSN 6150-01-440-8520
NSN 5935-01-358-3675