The Department of Defense, through the NAVSUP Weapon Systems Support, is seeking to procure a sole source item identified as the Main Module Assembly (XMSN) with NSN 1615-015523522 and part number 70351-38100-049. The procurement requires the acquisition of one unit from an approved source due to the unique design capabilities and manufacturing knowledge necessary to maintain the quality of the part, which is critical for helicopter rotor blades and associated components. Interested vendors must be aware that Government Source Approval is required prior to award, and those not currently approved must submit the necessary documentation as outlined in the NAVSUP WSS Source Approval Brochure. For inquiries, potential bidders can contact Mrs. Dana Scott at dana.scott@navy.mil or by phone at 215-697-0273.