The 1431-10BK3 is the satin black version of the 8 in x 4 in bottom plate for Hammond's 1441 series steel chassis. It is listed for two chassis heights in the 8 x 4 in footprint: the 1.00 in high 1441-9BK3 and the 2.00 in high 1441-10BK3, along with the grey 1441-9 and 1441-10. Builders of classic, vintage-style and tube equipment, hobbyists and OEM designers use it to give a dark chassis a finished underside.
Construction is 0.036" steel in a satin black finish. As the series specification explains, optional bottom plates are punched with 4 holes of 3/16" diameter and the chassis now includes 1/8" holes for installing the plate. Screws are sold separately; the drawing calls for 1421J6BK black cover screws or 1421J6 natural finish cover screws, each a package of 6 x 6-32 x 1/4" self-tapping screws.
The listed size is 8 in x 4 in x 0.04 in (203 mm x 102 mm x 1 mm), dimensioned on the drawing at 203.20 mm [8.00 in] x 101.60 mm [4.00 in] and 0.91 mm [.036 in] thick. The mating chassis are 20 gauge, 8.00 in (203 mm) wide and 4.00 in (102 mm) deep. Assembled with a 1441-10, the inner box measures 201.37 mm [7.93 in] x 99.77 mm [3.93 in] x 48.97 mm [1.93 in]. For the top, the ordering table lists the 1451-10BK3 satin black or 1451-10 grey perforated chassis cover.
The 1431-10BK3 ships in a bag at 0.32 lbs (0.15 kg) and is RoHS and REACH compliant.
| Type | Bottom Plate |
| Series | 1441 Series Steel Chassis |
| Part Number | 1431-10BK3 |
| Long Description | Bottom plate for steel chassis. Satin black. |
| Short Description | STEEL CHASSIS COVER 8 X 4 |
| Plate Thickness | 0.91 mm [.036 in] |
| Size (L X W X H) | 8 in x 4 in x 0.04 in (203 mm x 102 mm x 1 mm) |
| Plate Size (Drawing) | 203.20 mm x 101.60 mm [8.00 in x 4.00 in] |
| UPC | 623980964201 |
| UNSPSC | 39121301 |
| Rubber Feet | Sold separately |
| Gray Chassis | 1441-9, 1441-10 |
| Chassis Depth | 4.00 in (102 mm) |
| Chassis Width | 8.00 in (203 mm) |
| Chassis Steel Gauge | 20 |
| Satin Black Chassis | 1441-9BK3, 1441-10BK3 |
| Cover Screws (Black) | 1421J6BK, Pkg 6, 6-32 x 1/4" self-tapping screws (sold separately) |
| Chassis Bottom Plate Holes | 1/8" holes for optional bottom plate installation |
| Chassis Material (1441-10) | 0.036" steel |
| Gray Bottom Plate Equivalent | 1431-10 |
| Cover Screws (Natural Finish) | 1421J6, Pkg 6, 6-32 x 1/4" self-tapping screws (sold separately) |
| Gray Perforated Chassis Cover | 1451-10 |
| Assembly Inner Box Width (1441-10) | 99.77 mm [3.93 in] |
| Assembly Inner Box Height (1441-10) | 48.97 mm [1.93 in] |
| Assembly Inner Box Length (1441-10) | 201.37 mm [7.93 in] |
| Chassis Height (1441-9 / 1441-9BK3) | 1.00 in (25 mm) |
| Satin Black Perforated Chassis Cover | 1451-10BK3 |
| Chassis Height (1441-10 / 1441-10BK3) | 2.00 in (51 mm) |
| Packaging Type | bag |
| Shipping Weight | 0.32 lbs (0.15 kg) |
| Color | Black |
| Finish | Satin black |
| 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 1441-9BK3 and 1441-10BK3 satin black chassis and the 1441-9 and 1441-10 grey chassis, 8.00 in x 4.00 in.
Yes. The ordering table lists it for the 1.00 in (25 mm) high 1441-9 and the 2.00 in (51 mm) high 1441-10 versions.
8 in x 4 in x 0.04 in (203 mm x 102 mm x 1 mm), made of 0.036" steel.
No. Order 1421J6BK (black) or 1421J6 (natural finish) cover screws, packages of 6 x 6-32 x 1/4" self-tapping screws.
0.32 lbs (0.15 kg), packed in a bag.
Yes.
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