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 5915-01-381-8597
NSN 5950-00-279-7184
NSN 5975-01-423-8507
NSN 5835-01-388-5198
NSN 5960-00-090-2991
NSN 6145-01-078-4022
NSN 6240-01-541-7009
NSN 5910-01-272-8901
NSN 5855-01-085-5354
NSN 5985-01-016-2579
NSN 5975-01-267-3479
NSN 5915-01-318-9636