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 7035-00-104-7613
NSN 6150-01-400-4211
NSN 5910-01-503-2822
NSN 6320-01-418-6681
NSN 5915-00-076-9314
NSN 6620-00-869-9307
NSN 6150-00-871-3576
NSN 6620-01-318-8314
NSN 5996-01-014-6103
NSN 6150-00-226-0992
NSN 5915-00-995-7862
NSN 5925-00-539-8372