Program affiliation undetermined (may be Space Shuttle). Pyrotechnically actuated bolt, measuring approximately 7.5" x 4" x 4", used to hold the launch vehicle to the pad until a small explosive charge was command actuated, separating the bolt (and nut retraining it) from rocket. Etched with a part number, "MRD Z005488," and blank "Date of Refurbishment" table.
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