The 1451-29 is a perforated steel chassis cover in ASA 61 grey for the 12 x 10 in chassis in the 1441 Series. The ordering table matches it to the 1441-29 (12 x 10 x 2 in) and the satin black 1441-29BK3, providing a vented top for this near-square footprint.

The part record lists the cover at 12 in x 10 in x 5.2 in (305 x 254 x 132 mm), and the short description reads 10X12X5.2. On the drawing, the top is 307.01 mm [12.087 in] long and the bottom 305.18 mm [12.015 in], with a width of 254.00 mm [10.000 in] and a height of 132.56 mm [5.219 in]. The cover is built from 20 gauge welded steel with a perforated steel cover section at 0.91 mm [0.036 in] typical thickness.

Four #6-32 x 1/4 in self tap screws are supplied, and the drawing shows four 4.76 mm [0.188 in] diameter holes. The same chassis row lists the 1431-29 gray and 1431-29BK3 satin black bottom panels for enclosing the base.

This cover can be factory modified (milling, drilling, printing), and solid models are available in STEP or IGES format. The 1451-29 is RoHS and REACH compliant, ships boxed and has a shipping weight of 2.91 lbs (1.32 kg). A satin black version is sold as 1451-29BK3.