The Department of Defense, through the Defense Logistics Agency (DLA Aviation), is seeking quotes for the procurement of 12 units of a mechanical tachometer, identified by NSN 6680015134154. This solicitation is part of a combined synopsis/solicitation process, and the approved source for this item is 21439 9C00371-1. The mechanical tachometer is crucial for measuring rotational speed in various military applications, ensuring operational efficiency and safety. Interested vendors must submit their quotes electronically, as hard copies of the solicitation will not be available, and all submissions should be directed to the email address provided: DibbsBSM@dla.mil. The deadline for delivery is set for 171 days after the award of the contract.