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 6150-01-085-2312
NSN 5855-01-359-8592
NSN 6685-01-591-7222
NSN 5945-00-182-7384
NSN 6135-00-152-8729
NSN 5960-00-215-5884
NSN 5895-00-701-9458
NSN 5998-00-707-5781
NSN 5855-01-544-1482
NSN 5895-01-231-9895
NSN 5920-01-472-3303
NSN 6110-01-158-7225