<SEC-DOCUMENT>0000066570-21-000030-index.html : 20210625
<SEC-HEADER>0000066570-21-000030.hdr.sgml : 20210625
<ACCEPTANCE-DATETIME>20210625134546
ACCESSION NUMBER:		0000066570-21-000030
CONFORMED SUBMISSION TYPE:	11-K
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20201231
FILED AS OF DATE:		20210625
DATE AS OF CHANGE:		20210625

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:		211046618

	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>a2020form11-k.htm
<DESCRIPTION>11-K
<TEXT>
Document 1 - file: a2020form11-k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23
<SEQUENCE>2
<FILENAME>exhibit23-2020.htm
<DESCRIPTION>EX-23
<TEXT>
Document 2 - file: exhibit23-2020.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>image0a12a.jpg
<DESCRIPTION>MSA LOGO
<TEXT>
Document 3 - file: image0a12a.jpg

</DOCUMENT>
</SEC-DOCUMENT>