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 6685-00-294-6315
NSN 5905-00-821-7396
NSN 6620-01-642-9678
NSN 5990-01-633-9503
NSN 5996-01-495-2714
NSN 5935-01-249-6026
NSN 5950-01-448-9779
NSN 5975-01-113-7397
NSN 5915-01-232-6058
NSN 5935-01-651-6298
NSN 5915-00-998-1350
NSN 5950-01-542-4302