MIL-H-45193D
NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)
NFPA 70 -
National Electrical Code.
(Application for copies should be addressed to the National Fire Protection
Association, Battery March Park, Quincy, MA 02269.)
(Industry association specifications and standards are generally available
for reference from libraries. They are also distributed among technical groups
and using Federal agencies.)
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2.3 Order of Precedence. In the event of a conflict between the text of
this specification and the references cited herein, the text of this
specification shall take precedence.
3.
REQUIREMENTS
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3.1 First article. When specified (see 6.2.1), the contractor shall furnish
one or more complete heater guns for first article inspection. The first article
may be either a preproduction model or an initial production item which conforms
to the requirements of this specification. In either case, the approved first
article and the production items shall be identical and in accordance with the
terms of the contract. Approval of the first article shall not relieve the
contractor of the responsibility to furnish equipment in accordance with the
requirements of this specification.
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3.2 Design. The heater gun shall be designed to deliver air at the
temperature and in the volume specified herein. The heater gun shall be designed
for operation when held with one hand or when resting on a stand. All parts
subject to wear, breakage, or distortion shall be accessible for adjustment and
repair by the use of common hand tools.
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3.3 Material. The heater gun and its components shall be free of asbestos
material, including amosite, chrysotile crocidolite, tremolite, anthophyllite,
and actinolite. Materials not specifically designated herein or in the contract
shall be of a quality commensurate with the best commercial practice within the
electric heater gun industry. When dissimilar metals are used in contact with
each other, suitable protection against galvanic corrosion shall be applied in
accordance with MIL-STD-889.
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3.3.1 Reclaimed materials. The contractor is encouraged to use reclaimed
materials for fabricating new parts without jeopardizing the chemical and
physical properties, design integrity, and intent of the materials originally
selected or specified. The reclaimed materials shall have been reprocessed,
remanufactured, or recycled in a manner that shall restore them to the same
chemical composition and physical properties as the materials originally selected
for use. It shall not be permissible to use reclaimed parts as is, or rebuilt
from scrap or other used equipment.
3.4 Construction. All parts and materials used in fabricating the heater
gun shall be free of defects. In no event shall patching processes be used to
reclaim defective parts. External surfaces shall be smooth and free of sharp
edges. The construction of the heater gun shall be rugged and sturdy, and
commensurate with the best commercial practice within the electric heater gun
industry.
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