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 6150-01-506-9377
NSN 5930-01-100-1084
NSN 5950-01-094-2948
NSN 6620-00-273-8735
NSN 6620-00-241-2165
NSN 5985-00-374-1062
NSN 6150-01-118-4789
NSN 6320-01-335-8336
NSN 6105-01-387-0330
NSN 7035-00-946-2642
NSN 5975-01-566-3912
NSN 6135-00-078-9931