    <SEC-DOCUMENT>0001140361-21-014149-index.html : 20210423
    <SEC-HEADER>0001140361-21-014149.hdr.sgml : 20210423
    <ACCEPTANCE-DATETIME>20210423172143
    ACCESSION NUMBER:		0001140361-21-014149
    CONFORMED SUBMISSION TYPE:	S-4/A
    PUBLIC DOCUMENT COUNT:		18
    FILED AS OF DATE:		20210423
    DATE AS OF CHANGE:		20210423

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			FIRST NATIONAL CORP /VA/
    		CENTRAL INDEX KEY:			0000719402
    		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
    		IRS NUMBER:				541232965
    		STATE OF INCORPORATION:			VA
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		S-4/A
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-255180
    		FILM NUMBER:		21850733

    	BUSINESS ADDRESS:
    		STREET 1:		112 WEST KING STREET
    		CITY:			STRASBURG
    		STATE:			VA
    		ZIP:			22657
    		BUSINESS PHONE:		5404659121

    	MAIL ADDRESS:
    		STREET 1:		112 WEST KING STREET
    		CITY:			STRASBURG
    		STATE:			VA
    		ZIP:			22657
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>S-4/A
    <SEQUENCE>1
    <FILENAME>nt10022733x2_s4a.htm
    <DESCRIPTION>S-4/A
    <TEXT>
    Document 1 - file: nt10022733x2_s4a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.6
    <SEQUENCE>2
    <FILENAME>nt10022733x2_ex99-6.htm
    <DESCRIPTION>EXHIBIT 99.6
    <TEXT>
    Document 2 - file: nt10022733x2_ex99-6.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.7
    <SEQUENCE>3
    <FILENAME>nt10022733x2_ex99-7.htm
    <DESCRIPTION>EXHIBIT 99.7
    <TEXT>
    Document 3 - file: nt10022733x2_ex99-7.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>header_pipersandler.jpg
    <TEXT>
    Document 4 - file: header_pipersandler.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>logo_firstnationalcorp.jpg
    <TEXT>
    Document 5 - file: logo_firstnationalcorp.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>logo_firstnationalcorpx1.jpg
    <TEXT>
    Document 6 - file: logo_firstnationalcorpx1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>logo_rffinanciallc.jpg
    <TEXT>
    Document 7 - file: logo_rffinanciallc.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>logo_thebankoffincastle.jpg
    <TEXT>
    Document 8 - file: logo_thebankoffincastle.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>logo_thebankoffincastlex1.jpg
    <TEXT>
    Document 9 - file: logo_thebankoffincastlex1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>logo_yhb.jpg
    <TEXT>
    Document 10 - file: logo_yhb.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>nt10022733x2_ex99-6slide1.jpg
    <TEXT>
    Document 11 - file: nt10022733x2_ex99-6slide1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>nt10022733x2_ex99-6slide2.jpg
    <TEXT>
    Document 12 - file: nt10022733x2_ex99-6slide2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>nt10022733x2_ex99-7image01.jpg
    <TEXT>
    Document 13 - file: nt10022733x2_ex99-7image01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>nt10022733x2_ex99-7image02.jpg
    <TEXT>
    Document 14 - file: nt10022733x2_ex99-7image02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>nt10022733x2_footer.jpg
    <TEXT>
    Document 15 - file: nt10022733x2_footer.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>sig_pipersandler2.jpg
    <TEXT>
    Document 16 - file: sig_pipersandler2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>sig_rpfinanciallc.jpg
    <TEXT>
    Document 17 - file: sig_rpfinanciallc.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>sig_yhbpc.jpg
    <TEXT>
    Document 18 - file: sig_yhbpc.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>