The 1431-12 is a 7 in x 5 in steel bottom plate for Hammond's 1441 series steel chassis. It is listed for the 1441-12 grey chassis, the 1441-12BK3 satin black chassis and the 1441-12BK3CWW satin black chassis with walnut sides, one of the sizes Hammond offers with the real walnut side upgrade. The plate suits builders of classic, vintage-style and tube equipment, hobbyists and OEM engineers.
The plate is 0.036" steel with an ASA 61 smooth grey finish. The series specification notes that optional bottom plates are punched with 4 holes of 3/16" diameter and that the chassis now includes 1/8" holes to allow installation of the plate. Fixing screws are ordered separately: the drawing lists 1421J6 natural finish cover screws or 1421J6BK black cover screws, each a package of 6 x 6-32 x 1/4" self-tapping screws.
Hammond lists the size as 7 in x 5 in x 0.04 in (178 mm x 127 mm x 1 mm). On the drawing the plate is 177.80 mm [7.00 in] x 127.00 mm [5.00 in], 0.91 mm [.036 in] thick. The mating chassis is 20 gauge, 7.00 in (178 mm) wide, 5.00 in (127 mm) deep and 2.00 in (51 mm) high; assembled, the inner box measures 175.97 mm [6.93 in] long, 125.17 mm [4.93 in] wide and 48.97 mm [1.93 in] high.
The 1431-12 ships in a bag at 0.34 lbs (0.15 kg) and is RoHS and REACH compliant. All chassis components are sold separately, and rubber feet are sold separately as well.
| Type | Bottom Plate |
| Series | 1441 Series Steel Chassis |
| Part Number | 1431-12 |
| Long Description | Bottom plate for steel chassis. ASA 61 smooth grey. |
| Short Description | STEEL CHASSIS COVER 7 X 5 |
| Plate Thickness | 0.91 mm [.036 in] |
| Size (L X W X H) | 7 in x 5 in x 0.04 in (178 mm x 127 mm x 1 mm) |
| Plate Size (Drawing) | 177.80 mm x 127.00 mm [7.00 in x 5.00 in] |
| UPC | 623980492902 |
| UNSPSC | 39121301 |
| Rubber Feet | Sold separately |
| Gray Chassis | 1441-12 |
| Chassis Depth | 5.00 in (127 mm) |
| Chassis Width | 7.00 in (178 mm) |
| Chassis Height | 2.00 in (51 mm) |
| Chassis Material | 0.036" steel |
| Chassis Steel Gauge | 20 |
| Satin Black Chassis | 1441-12BK3 |
| Cover Screws (Black) | 1421J6BK, Pkg 6, 6-32 x 1/4" self-tapping screws (sold separately) |
| Assembly Inner Box Width | 125.17 mm [4.93 in] |
| Assembly Inner Box Height | 48.97 mm [1.93 in] |
| Assembly Inner Box Length | 175.97 mm [6.93 in] |
| Chassis Bottom Plate Holes | 1/8" holes for optional bottom plate installation |
| Cover Screws (Natural Finish) | 1421J6, Pkg 6, 6-32 x 1/4" self-tapping screws (sold separately) |
| Satin Black Bottom Plate Equivalent | 1431-12BK3 |
| Satin Black Chassis With Walnut Sides | 1441-12BK3CWW |
| Packaging Type | bag |
| Shipping Weight | 0.34 lbs (0.15 kg) |
| Color | Gray |
| Finish | ASA 61 smooth grey |
| Material | Steel |
| Mounting Holes | 4 holes, 3/16" diameter |
| Bottom Plate Material | 0.036" steel |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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The 1441-12 grey chassis, the 1441-12BK3 satin black chassis and the 1441-12BK3CWW satin black chassis with walnut sides, 7.00 in x 5.00 in x 2.00 in.
7 in x 5 in x 0.04 in (178 mm x 127 mm x 1 mm), made of 0.036" steel.
No. The drawing lists 1421J6 (natural finish) or 1421J6BK (black) cover screws, packages of 6 x 6-32 x 1/4" self-tapping screws.
Yes, the satin black plate for this size is 1431-12BK3.
The drawing shows an inner box of 175.97 mm [6.93 in] x 125.17 mm [4.93 in] x 48.97 mm [1.93 in].
Yes, RoHS and REACH compliant.
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