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 5999-01-232-4886
NSN 5855-01-264-8599
NSN 5965-00-194-9875
NSN 5950-01-448-9779
NSN 6145-00-158-5549
NSN 6685-01-541-1021
NSN 6645-01-156-6741
NSN 5996-01-633-7979
NSN 6220-01-148-7953
NSN 5835-00-835-2438
NSN 5998-00-159-8102
NSN 5920-01-272-4186