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 6645-01-532-3172
NSN 6110-00-246-3941
NSN 5950-01-005-1730
NSN 6685-00-960-1465
NSN 6150-01-347-2545
NSN 4140-01-384-2858
NSN 6320-01-176-8367
NSN 6110-01-092-6299
NSN 5930-01-148-8405
NSN 5910-01-648-2045
NSN 6645-01-245-4341
NSN 5960-01-376-3880