<SEC-DOCUMENT>0001564590-19-013953-index.html : 20190430 <SEC-HEADER>0001564590-19-013953.hdr.sgml : 20190430 <ACCEPTANCE-DATETIME>20190430062954 ACCESSION NUMBER: 0001564590-19-013953 CONFORMED SUBMISSION TYPE: 10-K/A PUBLIC DOCUMENT COUNT: 4 CONFORMED PERIOD OF REPORT: 20181231 FILED AS OF DATE: 20190430 DATE AS OF CHANGE: 20190430 FILER: COMPANY DATA: COMPANY CONFORMED NAME: ARMSTRONG WORLD INDUSTRIES INC CENTRAL INDEX KEY: 0000007431 STANDARD INDUSTRIAL CLASSIFICATION: PLASTICS PRODUCTS, NEC [3089] IRS NUMBER: 230366390 STATE OF INCORPORATION: PA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 10-K/A SEC ACT: 1934 Act SEC FILE NUMBER: 001-02116 FILM NUMBER: 19778293 BUSINESS ADDRESS: STREET 1: 2500 COLUMBIA AVE CITY: LANCASTER STATE: PA ZIP: 17603 BUSINESS PHONE: 7173970611 MAIL ADDRESS: STREET 1: 2500 COLUMBIA AVE CITY: LANCASTER STATE: PA ZIP: 17603 FORMER COMPANY: FORMER CONFORMED NAME: ARMSTRONG CORK CO DATE OF NAME CHANGE: 19800611 </SEC-HEADER> <DOCUMENT> <TYPE>10-K/A <SEQUENCE>1 <FILENAME>awi-10ka_20181231.htm <DESCRIPTION>10-K/A <TEXT> Document 1 - file: awi-10ka_20181231.htm
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