
The 1431-22BK3 is a satin black steel bottom plate for the 12 in x 8 in chassis size in the 1441 Series. It is well matched to the satin black chassis with walnut sides (1441-22BK3CWW and 1441-24BK3CWW), and it also fits the plain grey and satin black versions, giving vintage-style tube builds a finished black base.
The plate is 12 in x 8 in x 0.04 in (305 mm x 203 mm x 1 mm). The drawing calls out 0.036 in steel for the bottom plate, and the finish is satin black powder paint. It is punched with 4 holes of 3/16 in diameter, and the chassis includes 1/8 in holes to allow installation.
The 1441-22 drawing shows the assembled chassis with an inner box of 302.97 mm [11.93 in] long, 201.37 mm [7.93 in] wide and 48.97 mm [1.93 in] high. Screws are sold separately as 1421J6BK (black) or 1421J6 (natural finish), each six 6-32 x 1/4 in self-tapping screws. The 1431-22BK3 is RoHS and REACH compliant and ships in a bag at 0.93 lbs (0.42 kg).
| Hardware Included | No, order separately |
| Black Cover Screws | 1421J6BK (Pkg 6, 6-32 x 1/4 in self-tapping) |
| Natural Finish Cover Screws | 1421J6 (Pkg 6, 6-32 x 1/4 in self-tapping; series sheet: pan head, type C) |
| Type | Bottom Plate |
| Color | Black |
| Series | 1441 Series Steel Chassis (accessory) |
| CAD Models | Solid models of the enclosure available in STEP or IGES |
| Description | STEEL CHASSIS COVER 12 X 8 |
| Part Number | 1431-22BK3 |
| Factory Modification | Enclosures can be factory modified (milling, drilling, printing) |
| Size (L X W X H) | 12 in x 8 in x 0.04 in (305 mm x 203 mm x 1 mm) |
| Chassis Height (Drawing, 1441-22) | 50.80 mm [2.00 in] |
| Assembly Inner Box Width (Drawing, 1441-22) | 201.37 mm [7.93 in] |
| Assembly Inner Box Height (Drawing, 1441-22) | 48.97 mm [1.93 in] |
| Assembly Inner Box Length (Drawing, 1441-22) | 302.97 mm [11.93 in] |
| UPC | 623980964263 |
| UNSPSC | 39121301 |
| Grey Bottom Panel (Same Size) | 1431-22 |
| Fits Chassis 1441-22 / 1441-22BK3 | 12.00 in (305 mm) W x 8.00 in (203 mm) D x 2.00 in (51 mm) H, 20 gauge steel |
| Fits Chassis 1441-24 / 1441-24BK3 | 12.00 in (305 mm) W x 8.00 in (203 mm) D x 3.00 in (76 mm) H, 20 gauge steel |
| Matching Perforated Chassis Covers | 1451-22 (grey), 1451-22BK3 (satin black) |
| Satin Black Bottom Panel (Same Size) | 1431-22BK3 |
| Walnut-Side Chassis (2.00 In Height) | 1441-22BK3CWW |
| Walnut-Side Chassis (3.00 In Height) | 1441-24BK3CWW |
| Packaging Type | Bag |
| Shipping Weight | 0.93 lbs (0.42 kg) |
| Finish | Satin black powder paint |
| Material | Steel |
| Mounting Holes | Punched with 4 holes, 3/16 in diameter |
| Bottom Plate Material Thickness | 0.036 in steel (0.91 mm) |
| Chassis Material Thickness (1441-22 Drawing) | 0.036 in steel (0.91 mm) |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Yes. It is listed for the 3.00 in high 1441-24 family as well as the 2.00 in high 1441-22 family, all 12.00 in by 8.00 in.
Yes. The ordering table lists it for both the 1441-22BK3CWW and 1441-24BK3CWW satin black chassis with walnut sides.
No. Order 1421J6BK black or 1421J6 natural finish cover screws (Pkg 6, 6-32 x 1/4 in self-tapping).
The ASA 61 grey bottom plate for this size is 1431-22.

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