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 6130-00-502-3196
NSN 6150-01-162-9625
NSN 5905-01-384-2656
NSN 5996-01-499-9749
NSN 5935-01-458-6530
NSN 5915-00-615-9537
NSN 6145-00-162-7922
NSN 6610-01-490-5802
NSN 5930-00-659-2672
NSN 5950-00-099-9612
NSN 5920-01-287-8409
NSN 6105-01-243-9737