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 5998-00-911-9645
NSN 5985-01-434-9062
NSN 5935-00-986-8012
NSN 5998-01-453-0579
NSN 5990-00-983-7530
NSN 5996-01-391-2733
NSN 6145-00-155-5297
NSN 5985-01-243-6479
NSN 5950-00-802-0535
NSN 5925-00-148-8241
NSN 6320-00-593-0379
NSN 5935-01-445-0678