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 5999-01-529-7324
NSN 5925-01-570-4652
NSN 5915-00-621-0425
NSN 6320-01-162-5977
NSN 5935-01-262-2956
NSN 5999-00-661-0954
NSN 5915-01-366-6125
NSN 5960-00-774-8227
NSN 5930-01-230-5616
NSN 5915-01-443-8662
NSN 6685-01-418-0925
NSN 5915-01-607-0298