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 6685-00-984-6096
NSN 5855-01-458-7524
NSN 6135-01-036-3495
NSN 5975-01-534-4870
NSN 5975-01-343-2410
NSN 5930-01-457-7115
NSN 6130-01-370-5836
NSN 6620-01-648-1594
NSN 5945-01-431-3693
NSN 5910-00-196-2646
NSN 5935-01-142-5825
NSN 6620-01-012-2852