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 5999-01-015-5399
NSN 5915-01-536-7950
NSN 5930-01-407-4286
NSN 6110-01-290-4759
NSN 6650-01-454-2187
NSN 7035-01-340-9640
NSN 5855-01-222-1242
NSN 5999-01-266-9501
NSN 5975-01-510-4206
NSN 5996-01-245-2946
NSN 6145-01-167-1107
NSN 5996-01-483-1858