A-A-54503
22 October 1991
COMMERCIAL ITEM DESCRIPTION
SCISSORS, COLLAR AND CROWN
The General Services Administration has authorized the use of this Commercial Item Description as a replacement for Federal Specification GG-S-1616A which is cancelled.
This commercial item description covers scissors suitable for use in cutting bands, preformed crowns, and matrices in dental operative procedures.
Salient Characteristics:
The scissors shall be as specified herein:
Curved, Beebee
Straight, Universal
Curved, Quimby
Material. The scissors shall be fabricated of Class 4, Type 420B, 420X, 420C or 420F martensitic stainless steel. Except, the screw shall be fabricated of Class 4, Type 416 martensitic stainless steel or Class 3, Type 303 austenitic stainless steel. All materials shall be in accordance with ASTM Designation F899, for composition only.
Hardness. After proper stress relieving the scissors shall have a Rockwell hardness of C50 to C55 (with the exception of the screw), in accordance with ASTM Designation E18 or E92 and E140.
Design and dimensions. The scissors shall be suitable to contour preformed crowns, and to cut dental wires and matrices.
Defense Personnel Support Center (DPSC) Drawing No. 20178 shall apply for the Beebee design which shall have a curved blade and the universal design which shall have a sturdy, straight blade.
Defense Personnel Support Center (DPSC) Drawing No. 23201 shall apply for the curved Quimby design with doubled pointed ends.
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
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