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 5915-01-410-2783
NSN 6220-00-635-8818
NSN 5930-00-654-3311
NSN 5965-01-178-2367
NSN 6220-01-307-5265
NSN 6610-01-055-4147
NSN 5985-00-410-9349
NSN 6220-01-481-1105
NSN 6320-01-622-5493
NSN 5990-01-395-4194
NSN 5930-00-729-9883
NSN 5935-01-055-9233