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 6150-01-502-3340
NSN 5855-01-534-6802
NSN 6110-01-292-7823
NSN 4140-01-398-0286
NSN 5960-01-477-9997
NSN 6240-01-025-5847
NSN 6645-00-019-0554
NSN 5895-01-437-6925
NSN 5965-00-408-5501
NSN 6240-01-094-7717
NSN 5999-01-401-5322
NSN 6150-01-400-4211