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 7035-01-290-1447
NSN 5945-01-608-3949
NSN 5935-00-779-0887
NSN 5935-01-099-9671
NSN 5920-01-249-7616
NSN 5935-00-969-1352
NSN 6620-00-155-2608
NSN 5975-01-085-4892
NSN 5920-01-471-4423
NSN 5855-00-631-4565
NSN 5950-00-191-9999
NSN 6105-01-528-7089