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 6130-01-431-3321
NSN 5950-01-255-1879
NSN 5950-01-353-8607
NSN 5930-01-072-7442
NSN 5960-00-243-5025
NSN 6150-01-087-3963
NSN 5965-01-359-0384
NSN 5930-01-581-6956
NSN 6110-00-099-7113
NSN 5990-01-431-6749
NSN 5998-01-180-3150
NSN 5965-01-207-0991