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 7035-00-731-8729
NSN 5935-00-849-3189
NSN 5910-01-422-1699
NSN 6685-00-999-2503
NSN 5930-01-520-8118
NSN 6150-01-353-8144
NSN 2925-01-550-0177
NSN 6610-01-631-1184
NSN 5935-01-216-6374
NSN 5975-01-302-6335
NSN 6240-00-779-3394
NSN 6105-01-432-5103