<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-10-10</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000101830</issuerCik>
        <issuerName>SPRINT CORP</issuerName>
        <issuerTradingSymbol>FON</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001194790</rptOwnerCik>
            <rptOwnerName>SWANSON WILLIAM H</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>RAYTHEON COMPANY</rptOwnerStreet1>
            <rptOwnerStreet2>870 WINTER STREET</rptOwnerStreet2>
            <rptOwnerCity>WALTHAM</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02451</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Share Units DDFP</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2004-10-10</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>7500</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>FON Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>7500</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>7500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Share units are issued under the Issuer's Directors' Deferred Fee Plan (the &quot;Plan&quot;) and are convertible into an amount of cash equal to the value of the Issuer's FON common stock upon the reporting person's retirement, death, or termination of office in accordance with the terms of the Plan.</footnote>
        <footnote id="F2">These share units vest 50% on the 5th anniversary of the award; and 10% per year on each of the five subsequent anniversaries.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By: Claudia S Toussaint  For: William H Swanson</signatureName>
        <signatureDate>2004-10-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
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X0202
4
2004-10-10
0
0000101830
SPRINT CORP
FON
0001194790
SWANSON WILLIAM H
RAYTHEON COMPANY
870 WINTER STREET
WALTHAM
MA
02451
1
0
0
0
Share Units DDFP
2004-10-10
4
A
0
7500
A
FON Common Stock
7500
7500
D
Share units are issued under the Issuer's Directors' Deferred Fee Plan (the "Plan") and are convertible into an amount of cash equal to the value of the Issuer's FON common stock upon the reporting person's retirement, death, or termination of office in accordance with the terms of the Plan.
These share units vest 50% on the 5th anniversary of the award; and 10% per year on each of the five subsequent anniversaries.
By: Claudia S Toussaint  For: William H Swanson
2004-10-12