UNITED STATES SECURITIES AND EXCHANGE COMMISSION Commission File Number 1-8472 Hexcel Corporation (Exact name of registrant as specified in its charter) Delaware 94-1109521 (State of Incorporation) (I.R.S. Employer Identification No.) Washington, D. C. 20549 FORM 10–K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2018 or ☐ Transition Report Pursuant to Section 13 or 15 (d) of the Securities Exchange Act of 1934 For the transitio ...