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 5915-01-422-0564
NSN 6610-01-259-5296
NSN 6110-00-400-5764
NSN 2925-00-617-0826
NSN 6150-01-399-6207
NSN 5910-01-134-2061
NSN 6220-00-583-9889
NSN 6650-01-617-5885
NSN 4140-00-905-6570
NSN 5910-00-223-9826
NSN 6240-01-339-3054
NSN 4140-01-313-2455