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 5965-01-245-6585
NSN 6220-00-300-7028
NSN 5920-00-281-2488
NSN 5930-00-539-2108
NSN 6685-01-393-1280
NSN 5910-01-187-1912
NSN 6650-01-142-7673
NSN 5895-01-535-5975
NSN 5915-01-049-8403
NSN 5835-01-360-2657
NSN 4140-01-212-8286
NSN 5950-01-189-5475