BDI, a small company, has been around for a while. It was founded in 1955. It actually worked construction until 1968. At that time, it became more technical and began working with machinery. Machine shop services were conducted until 1975. Most of the time the company has been doing more than one thing at a time. From 1972 until 1982 the company worked in pharmaceutical as well as manufacturing. However, quite by accident, the production of vision blocks began in 1975 with a prime Government contract. Until the present, since that beginning, the main thrust of the company has been to produce vision blocks and do it well. BDI bought out the vision block fabrication division of Liberty Mirror - who had taken over from LOF. We then acquired the phase out portions of Falconer when they were taken over by Guardian. A lot has happened over the past that adds to our skill and ability. Others are here by accident. We are here on purpose.
Internal to BDI are the skills and ability to conduct most of the testing associated with producing prototypes, first articles and quality assurance as production proceeds.
Vision Blocks come with a warranty. You are protected for defects in material and workmanship for a period of one year from date of fabrication or until installation, whichever occurs first. There is no design or functionality warranty.
BDI has tools, jigs, fixtures and gages as needed. We have a general purpose machine shop for maintenance to support production and produce new and different tools and gages as may be required. Most generally the machine shop does not do outside work.
BDI has determined that there are at least 60 different style blocks it has produced over time. We are fully tooled.
The shareholders and staff wish to for your interest.

Part Number Log
We have drawings and SPECS on the following items. We have built them and others not listed here. Of course we would be happy to design a block for a particular use.
VISION BLOCK PN's:
2584153 6300790 11594243 12357798 2540V0741 132584-1 112467 6289509 10925306 12250079 12370321 CP-1103 132584-2 80115224 4223070 7004034 11594271 12357802 D5-15-12629 100734 80115225-1 6285382 10501713 11608210 12370302 D5-15-12971 100734-1 80115225-2 --- --- --- --- --- 100734-2 80115225-3 Other blocks previously designed by us are not listed here.
If you need a vision block listed, give us an opportunity to quote. If you need design assistance, we certainly can help.
BDI facilities comply with MIL-I-45208. Inspection equipment is kept under MIL-STD-45662. All Vision Blocks are custom made.
Most of these part numbers have NSN's (national stock number) assigned. We can do the crossover for you.
Because we are OEM (original equipment manufacturer) to a number of vehicle manufacturers, we have listed some of their part numbers. Complete confidence can be relied upon.