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 5905-01-347-3588
NSN 5930-01-615-2107
NSN 5855-00-494-9581
NSN 5999-01-350-2110
NSN 5930-00-919-1818
NSN 5855-01-566-1568
NSN 5960-01-116-2092
NSN 6220-01-627-9782
NSN 6320-00-405-2348
NSN 6610-01-646-1609
NSN 5925-00-903-5841
NSN 5965-01-356-0751