<SEC-DOCUMENT>0000066570-18-000029-index.html : 20180627
<SEC-HEADER>0000066570-18-000029.hdr.sgml : 20180627
<ACCEPTANCE-DATETIME>20180627160202
ACCESSION NUMBER:		0000066570-18-000029
CONFORMED SUBMISSION TYPE:	11-K
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20171231
FILED AS OF DATE:		20180627
DATE AS OF CHANGE:		20180627

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MSA Safety Inc
		CENTRAL INDEX KEY:			0000066570
		STANDARD INDUSTRIAL CLASSIFICATION:	ORTHOPEDIC, PROSTHETIC & SURGICAL APPLIANCES & SUPPLIES [3842]
		IRS NUMBER:				464914539
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		11-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15579
		FILM NUMBER:		18921810

	BUSINESS ADDRESS:	
		STREET 1:		1000 CRANBERRY WOODS DRIVE
		CITY:			CRANBERRY TOWNSHIP
		STATE:			PA
		ZIP:			16066
		BUSINESS PHONE:		724-776-8600

	MAIL ADDRESS:	
		STREET 1:		1000 CRANBERRY WOODS DRIVE
		CITY:			CRANBERRY TOWNSHIP
		STATE:			PA
		ZIP:			16066

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MINE SAFETY APPLIANCES CO
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>11-K
<SEQUENCE>1
<FILENAME>a2017form11-k.htm
<DESCRIPTION>11-K
<TEXT>
Document 1 - file: a2017form11-k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23
<SEQUENCE>2
<FILENAME>exhibit23-2017.htm
<DESCRIPTION>EXHIBIT 23
<TEXT>
Document 2 - file: exhibit23-2017.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>image0a11.jpg
<DESCRIPTION>IMAGE
<TEXT>
Document 3 - file: image0a11.jpg

</DOCUMENT>
</SEC-DOCUMENT>