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 5965-00-910-3233
NSN 5996-01-289-8044
NSN 5950-01-563-7259
NSN 6620-00-351-9949
NSN 5996-01-154-1064
NSN 6135-01-520-4199
NSN 2925-00-835-4315
NSN 5975-00-553-7151
NSN 6130-00-469-0640
NSN 2925-00-759-5465
NSN 5895-01-522-5290
NSN 5950-01-012-0612