Model: 04-90020-057D
Fire Detector Sy Sensing ElementProperties:
An item consisting of a pair of electrical conductors imbedded in a semiconductor material, having a negative temperature coefficient of resistance which is tightly encased in a suitable metallic tube. The ends of the assembly are terminated for adaption in a fire detector system.
Part 04-90020-057D NSN 6340-01-651-7791
Material Classification
Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicatorsFreight Classification
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Schedule B and Export
- Schedule B: 8531900002
- SITC: 77885
- End Use: Electric apparatus
- NAICS: 335999
- USDA: 1
Freight Class: Parts of electric sound or visual signaling apparatus other than printed circuit assemblies, nesoi
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