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 5998-00-900-8643
NSN 5960-00-887-2618
NSN 6240-01-313-8253
NSN 6110-01-422-2580
NSN 5996-01-442-8060
NSN 6145-01-449-2969
NSN 5920-00-967-1396
NSN 5920-01-372-7122
NSN 5930-01-529-6343
NSN 6220-00-778-7213
NSN 5975-00-661-1832
NSN 6110-01-049-4362