A-A-52313 Steel Sheets, Corrugated: 2-1/2 Inch Nominal Corrugation, Painted Or UnpaintedThis commercial item description covers painted and unpainted corrugated steel sheets for roofing (type I) and siding (type II).

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A-A-52313A

TABLE I. Code number for type.

Code Number	Type
I	I � Roofing sheet, edges turned opposites.
II	II � Siding sheet, edges turned in same direction.

TABLE II. Code letter to length.

Code Letter	Length (inches)	Code letter to length
A	96	Applicable to type I
B	132	Applicable to type I
C	144	Applicable to type I & II
D	60	Applicable to type II
E	108	Applicable to type II

TABLE III. Code letter to length.

Code Letter	Length (inches)	Code letter to length
A		0.0149 inch (28 gauge)
B	132	0.0299 inch (22 gauge)

TABLE IV. Code letter to length.

Code Number	Finished
U	Unpainted
P	Painted

7.2. Procurement options. The procuring agency should specify the preferred options permitted herein and include the following information in procurement documents:

a. Title, number, and date of this item description.

b. Type, length, thickness, and finish.

c. Color and gloss required when paint is specified.

d. When the commercial item description is used for acquisition, the commercial item certification clause must appear in the solicitation.

7.3. Availability of references.

7.3.1 Federal documents. Copies of FED-STD-376 are available online at https://assist.daps.dla.mil. or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.