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 5935-01-123-8404
NSN 5996-00-087-6714
NSN 5905-01-539-6212
NSN 6105-01-260-9151
NSN 6645-01-023-3308
NSN 5895-00-401-1778
NSN 6150-01-537-4215
NSN 5855-00-455-6070
NSN 5945-01-440-7448
NSN 6645-01-535-0719
NSN 5950-01-459-5109
NSN 5930-00-347-1700