This is a 33066FL01-010R Float Glass Plane Ruled Diffraction Grating, sourced from the renowned optical component vendor, MKS/Newport. The grating, which is 12.5 mm in width, 25 mm in height, and 6 mm in thickness, is a Blazed Ruled Reflective Grating of the Rectangular base shape.
The grating is made of soda lime ru clear material and is coated with a front coating of nwr 53-010r-1092-1. It is designed to operate at a wavelength of 588 nm and features physical data including a blaze wavelength of 300, 600 grooves, a blaze angle of 5.2 degrees, and an orientation vector of (1, 0, 0). The grating is intended for first order operation and is designed to be used from the front side.
For more detailed information, please refer to the vendor's website at https://www.newport.com/p/33066FL01-010R, which is currently valid and indicates the product is in stock.