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 5925-00-142-9991
NSN 5930-01-420-6529
NSN 6145-00-257-6820
NSN 5930-01-624-4907
NSN 6110-01-035-0427
NSN 6105-01-237-2507
NSN 6110-01-215-5559
NSN 6150-01-433-4587
NSN 6320-01-600-5808
NSN 5965-01-633-8849
NSN 6150-01-079-6831
NSN 6620-00-050-1086