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 5935-00-383-3535
NSN 5996-00-553-7348
NSN 5935-01-320-2811
NSN 5835-00-378-1429
NSN 5975-00-121-3589
NSN 5998-01-062-2281
NSN 6220-01-383-6178
NSN 5895-00-230-4827
NSN 6320-01-532-7491
NSN 6105-01-006-5963
NSN 5925-01-180-8002
NSN 5910-00-729-4963