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 5925-01-596-8118
NSN 5996-01-606-0835
NSN 6320-01-333-5782
NSN 5910-01-201-2946
NSN 6650-01-399-8552
NSN 5930-01-474-3056
NSN 6135-01-278-9717
NSN 6130-01-337-1220
NSN 5960-00-740-7285
NSN 6645-01-274-2521
NSN 6145-01-141-7250
NSN 6130-01-422-2051