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 5950-01-201-8117
NSN 5998-01-179-2834
NSN 6110-00-205-1778
NSN 5930-01-606-8106
NSN 6110-01-117-7343
NSN 5905-01-446-9639
NSN 5935-00-128-1588
NSN 5945-00-918-4268
NSN 7035-00-946-2642
NSN 6240-01-434-8083
NSN 6610-00-850-4910
NSN 5925-01-162-2219