The 14-492 is a 50 x 50 mm SCHOTT GG495 Yellow Colored Glass Longpass Filter, designed to cut on at 495nm and with a thickness of 3mm. This filter is sourced from Edmund Optics and is available for purchase through their website, where it is currently listed as in stock.
The filter is a Color Glass type, featuring a rectangular base shape and a Thin Lens geometry. The physical data of the filter indicates that it is designed to cut on at 495nm, with no specified cut off wavelength. The coating on both the front and back of the filter is EDM 14-492.
The catalog number for this item is 14-492, and it can be found on the Edmund Optics website at https://www.edmundoptics.com/p/schott-gg495-50mm-sq-3mm-thick-colored-glass-longpass-filter/42520/. The weblink status is valid, and the vendor is Edmund Optics.