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 5920-01-527-7656
NSN 6320-01-215-6459
NSN 5935-00-557-9685
NSN 5996-01-339-7539
NSN 6220-00-635-8818
NSN 6685-01-098-9140
NSN 6130-00-810-3795
NSN 6240-00-349-8061
NSN 5960-01-512-0233
NSN 5835-01-647-6426
NSN 5835-00-401-8655
NSN 5910-01-447-3405