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 5935-00-056-5018
NSN 5915-00-627-4850
NSN 5905-01-044-5606
NSN 6130-00-833-0911
NSN 5945-01-076-2674
NSN 6110-00-081-6335
NSN 5910-00-145-9959
NSN 6620-00-494-1428
NSN 6105-01-511-1233
NSN 5910-01-657-4685
NSN 2925-01-544-4880
NSN 5960-01-543-0235