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 5930-00-139-2004
NSN 6105-01-450-4719
NSN 6105-00-232-1410
NSN 5930-01-242-0055
NSN 5935-00-449-1596
NSN 5895-01-020-5377
NSN 6685-00-449-8726
NSN 5895-00-814-7954
NSN 7035-01-302-5359
NSN 5950-00-770-2077
NSN 7035-01-413-6697
NSN 5925-01-064-4097