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 6610-00-290-0758
NSN 6320-01-332-1977
NSN 4140-01-164-1192
NSN 5935-01-217-9012
NSN 6145-00-141-8095
NSN 5935-01-421-4575
NSN 5905-00-266-8401
NSN 6320-01-631-7828
NSN 6685-01-125-0026
NSN 7035-00-455-7666
NSN 6220-01-396-1617
NSN 6150-01-304-6354