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 5895-01-432-2464
NSN 5950-00-338-9536
NSN 5930-01-416-4268
NSN 7035-01-538-2798
NSN 5915-01-553-6738
NSN 5855-01-256-2551
NSN 5930-00-889-5358
NSN 5975-01-352-5853
NSN 5990-01-463-5400
NSN 6150-01-385-8070
NSN 7035-00-104-7613
NSN 5998-00-446-8830