An item consisting of a metal frame in which is inserted a flat metal plate mounted on a shaft. The plate, fluctuating automatically according to changes in atmospheric pressure, controls the stack or flue draft and maintains an absolute constancy of draft regardless of varying weather conditions.
NSN: 4520-01-297-0321
What are the manufacturers of nsn 4520012970321?
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Does this nsn 4520012970321 have a shelf life? No. This NSN does not have an applicable shelf life. |
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What is the formal definition of nsn 4520012970321 An item consisting of a metal frame in which is inserted a flat metal plate mounted on a shaft. the plate, fluctuating automatically according to changes in atmospheric pressure, controls the stack or flue draft and maintains an absolute constancy of draft regardless of varying weather conditions. |
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Does nsn 4520012970321 contain any precious metals? No precious metal content. |
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Does nsn 4520012970321 contain any hazardous materials? No MSDS. No hazardous material. |
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What is the ESD classification of nsn 4520012970321? No known electrostatic discharge. |
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