<SEC-DOCUMENT>0000902219-14-001045-index.html : 20140812
<SEC-HEADER>0000902219-14-001045.hdr.sgml : 20140812
<ACCEPTANCE-DATETIME>20140811124950
ACCESSION NUMBER:		0000902219-14-001045
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20140811
DATE AS OF CHANGE:		20140811

SUBJECT COMPANY:	

	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:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-30703
		FILM NUMBER:		141029722

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WELLINGTON MANAGEMENT CO LLP
		CENTRAL INDEX KEY:			0000902219
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		IRS NUMBER:				042683227
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		280 CONGRESS STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210
		BUSINESS PHONE:		6179515000

	MAIL ADDRESS:	
		STREET 1:		280 CONGRESS STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02210

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WELLINGTON MANAGEMENT CO
		DATE OF NAME CHANGE:	19930426
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>sec_filing.htm
<DESCRIPTION>DISCLOSURE DOCUMENT
<TEXT>
Document 1 - file: sec_filing.htm

</DOCUMENT>
</SEC-DOCUMENT>