Highly desirable component of the Apollo Lunar Module's landing leg deployment truss sideframe assembly, measuring approximately 34″ x 9″ x 4.5″, with one side wrapped in gold Kapton foil and the other covered by a material painted with a heat-resistant black Pyromark coating for protection against Descent Engine heating during landing. The truss sideframe piece is a key component of the Lunar Module's landing strut assembly, which maintains stability during deployment of the landing legs. The Kapton foil is stamped with indiscernible part numbers. In very good to fine condition, with a few tears to the foil. The consignor notes that this once had a Grumman tag with it (now absent), identifying the piece as "Contract No. NAS9-110, MFG Part No. LDW320-23903-6-1, MFG Code No. 26512, Item No. CGBDD, Date Packed 2/71."