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 6610-01-264-4888
NSN 5999-01-391-7475
NSN 5895-01-247-2333
NSN 7035-01-437-4137
NSN 6320-01-536-3077
NSN 5915-01-481-7930
NSN 5990-00-633-7634
NSN 5998-00-073-1802
NSN 6150-01-259-7044
NSN 5895-01-130-6072
NSN 5905-01-275-6136
NSN 6685-01-042-7835