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 5950-01-312-4016
NSN 5990-01-272-4091
NSN 5930-01-634-0659
NSN 5835-00-401-2578
NSN 5945-01-303-6745
NSN 2925-00-159-9003
NSN 5925-01-393-1832
NSN 5996-00-278-5193
NSN 5915-00-918-2905
NSN 5935-01-245-8908
NSN 5895-00-099-9532
NSN 5855-00-688-9954