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 5910-01-458-5603
NSN 5910-01-038-3942
NSN 5945-01-539-0652
NSN 6135-01-362-4256
NSN 5985-01-544-4086
NSN 6685-00-707-4842
NSN 6320-00-701-0437
NSN 6220-01-264-3485
NSN 6620-01-147-5615
NSN 6620-01-333-7014
NSN 5930-01-016-4084
NSN 5975-00-964-7332