The 1451-29BK3 is the satin black perforated steel cover for the 12 x 10 in chassis in the 1441 Series. The ordering table lists it for the 1441-29 and 1441-29BK3 (12 x 10 x 2 in), making it the matching vented top for a black build on that footprint.

The part record gives its size as 10 in x 12 in x 5.2 in (254 x 305 x 132 mm). On the drawing the cover measures 307.01 mm [12.087 in] across the top, 305.18 mm [12.015 in] across the bottom, 254.00 mm [10.000 in] in width and 132.56 mm [5.219 in] in height. It is 20 gauge welded steel with a perforated steel cover, at a typical material thickness of 0.91 mm [0.036 in].

Four #6-32 x 1/4 in self tap screws are supplied for attachment through four 4.76 mm [0.188 in] diameter holes. The 1431-29BK3 satin black bottom panel listed for the same chassis completes a fully black enclosure, and the gray 1431-29 is also listed.

Factory modification (milling, drilling, printing) is available, along with STEP or IGES solid models. The 1451-29BK3 is RoHS and REACH compliant, ships in a box and has a shipping weight of 2.91 lbs (1.32 kg). The grey version is 1451-29.