<SEC-DOCUMENT>0001623632-17-000937-index.html : 20170420
<SEC-HEADER>0001623632-17-000937.hdr.sgml : 20170420
<ACCEPTANCE-DATETIME>20170420114610
ACCESSION NUMBER:		0001623632-17-000937
CONFORMED SUBMISSION TYPE:	497
PUBLIC DOCUMENT COUNT:		15
FILED AS OF DATE:		20170420
DATE AS OF CHANGE:		20170420
EFFECTIVENESS DATE:		20170420

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FEDERATED MUNICIPAL SECURITIES FUND INC
		CENTRAL INDEX KEY:			0000201801
		IRS NUMBER:				251304971
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		497
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	002-57181
		FILM NUMBER:		17772021

	BUSINESS ADDRESS:	
		STREET 1:		4000 ERICSSON DRIVE
		CITY:			WARRENDALE
		STATE:			PA
		ZIP:			15086-7561
		BUSINESS PHONE:		8003417400

	MAIL ADDRESS:	
		STREET 1:		4000 ERICSSON DRIVE
		CITY:			WARRENDALE
		STATE:			PA
		ZIP:			15086-7561

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LIBERTY MUNICIPAL SECURITIES FUND INC
		DATE OF NAME CHANGE:	19930517

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FEDERATED TAX FREE INCOME FUND INC
		DATE OF NAME CHANGE:	19920703
<SERIES-AND-CLASSES-CONTRACTS-DATA>
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<SERIES>
<OWNER-CIK>0000201801
<SERIES-ID>S000009070
<SERIES-NAME>FEDERATED MUNICIPAL SECURITIES FUND INC
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000024642
<CLASS-CONTRACT-NAME>Class A Shares
<CLASS-CONTRACT-TICKER-SYMBOL>LMSFX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000024643
<CLASS-CONTRACT-NAME>Class B Shares
<CLASS-CONTRACT-TICKER-SYMBOL>LMSBX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000024644
<CLASS-CONTRACT-NAME>Class C Shares
<CLASS-CONTRACT-TICKER-SYMBOL>LMSCX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000051334
<CLASS-CONTRACT-NAME>Class F Shares
<CLASS-CONTRACT-TICKER-SYMBOL>LMFFX
</CLASS-CONTRACT>
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<DOCUMENT>
<TYPE>497
<SEQUENCE>1
<FILENAME>form.htm
<TEXT>
Document 1 - file: form.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.INS <SEQUENCE>2 <FILENAME>fmsfi-20170410.xml <DESCRIPTION>XBRL INSTANCE FILE <TEXT> Document 2 - file: fmsfi-20170410.xml
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</DOCUMENT> <DOCUMENT> <TYPE>EX-101.DEF <SEQUENCE>4 <FILENAME>fmsfi-20170410_def.xml <DESCRIPTION>XBRL DEFINITION FILE <TEXT> Document 4 - file: fmsfi-20170410_def.xml
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</DOCUMENT> <DOCUMENT> <TYPE>EX-101.PRE <SEQUENCE>6 <FILENAME>fmsfi-20170410_pre.xml <DESCRIPTION>XBRL PRESENTATION FILE <TEXT> Document 6 - file: fmsfi-20170410_pre.xml
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</DOCUMENT> <DOCUMENT> <TYPE>EXCEL <SEQUENCE>12 <FILENAME>Financial_Report.xlsx <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 12 - file: Financial_Report.xlsx
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>13 <FILENAME>Show.js <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 13 - file: Show.js
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>14 <FILENAME>report.css <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 14 - file: report.css
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>16 <FILENAME>FilingSummary.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 16 - file: FilingSummary.html
Document 16 - RAW XML: FilingSummary.xml
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