A-A-54290
11 December 1990
COMMERCIAL ITEM DESCRIPTION
ELEVATOR, ZYGOMA, Dingman, Heavy Duty
The General Services Administration has authorized the use of this commercial item description.
This commercial item description covers a heavy duty, Dingman style zygoma elevator suitable or reducing zygomatic fractures.
Salient Characteristics:
General. Elevators shall be of the Dingman style, heavy duty and have curved, rounded blade.
Material. Material of the elevator shall be Class 4 corrosion-resistant steel in accordance with ASTM Designation F899.
Hardness. Elevators shall have a Rockwell Hardness C scale (HRC) of 40 to 48 when tested in accordance with ASTM Designation E18 or E92 whichever is applicable. Conversion of hardness values shall be in accordance with ASTM Designation E140.
Style, design and dimensions. Elevators shall be in accordance with Defense Personnel Support Center (DPSC) Drawing No. 23455 for style, design and dimensions.
Finish. Elevators shall have matte or satin finish. The matte finish shall exhibit a uniform nondirectional surface texture equivalent to that produced by lightly blasting the prepared surface with fine abrasives under pressure.
Passivation. Elevators shall be properly passivated.
Corrosion-resistance. No evidence of corrosion or plating of copper shall show when tested in accordance with ASTM Designation F1089.
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
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