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 6135-01-278-9717
NSN 5950-00-055-3792
NSN 2925-01-362-2515
NSN 5895-00-246-4415
NSN 5965-01-063-0609
NSN 5950-00-993-8354
NSN 5835-01-264-8782
NSN 6150-01-351-4816
NSN 5895-01-014-9397
NSN 5945-01-432-0276
NSN 5999-01-355-6623
NSN 5998-00-336-2396