The Army requires Maintenance and Overhaul of Servocylinder Input/Output (NSN 1650-01-494-0083, P/N 7-311820014-21), with an estimated quantity range of 60 minimum to 360 maximum, including 60 FMS units. Anticipated delivery is 120 days from receipt of the asset at a rate of 10 per month, with delivery location TBD. The contract is planned as a single-award, firm-fixed-price, five-year IDIQ with a 60-month period of performance and five priced ordering periods. The item is a Critical Safety Item requiring an SRD-approved source; Parker-Hannifin is currently the only known approved source, though contractors are encouraged to pursue SAR approval. This is a presolicitation notice, the requirement is currently unfunded with award withheld pending sufficient funds, and the solicitation will be available electronically via PIEE with SAM registration required.