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 5935-00-734-8560
NSN 5985-01-025-6051
NSN 2925-01-633-4048
NSN 5996-01-533-3219
NSN 6110-01-569-5762
NSN 5855-01-350-5540
NSN 4140-01-392-6165
NSN 5975-00-936-5263
NSN 6130-01-481-5530
NSN 4140-01-231-4422
NSN 5950-01-066-3059
NSN 5915-01-054-6828