ML18106B093

Part 21 Rept Re Possible Defect in Swagelok Pipe Fitting Tee,Part Number SS-6-T.Caused by Crack Due to Improper Location of Heated Bar.Only One Part Out of 7396 Pieces in Forging Lot Was Found to Be Cracked.Affected Util,Notified

ML18106B093
Person / Time
Site:	Salem, Hope Creek, Summer
Issue date:	02/25/1999
From:	Malec K External (Affiliation Not Assigned)
To:	NRC (Affiliation Not Assigned), NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
REF-PT21-99 NUDOCS 9903160153
Download: ML18106B093 (3)

Text

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SWAGELOK COMPANY 29500 Solon Road, Solon, Ohio 44139-3492 U.S.A.

February 25, 1999 Document Control Desk Office of Reactor Regulation Nuclear Regulatory Commission Washington, DC 20555

Subject:

Defects Potentially Reportable under 10CFR21 We are writing further to our notification of January 29, 1999 about a possible defect in a Swagelok pipe fitting tee, part number SS-6-T.

The two utilities to whom we have sold these parts are repeated in the appendix to this letter, along with a drawing of the affected part.

As we reported earlier, the possible defect is a crack in the center of the forging. We have determined that the crack occurred because the heated bar was not properly located in the first station of the die, which is when the bar is flattened to assure correct fill of the die.

At this time we have only found one part out of the 7396 pieces in the forging lot that was cracked.

When this part was forged in 1996, our procedure was to visually inspect suspect lots for this condition. Since 1998, we have implemented 100% dye penetrant on suspect lots. We  ;,;-_

are also investigating an error free system for this process. / ;

1 There was no defect in the forging material.

If there are any questions, please do not hesitate to contact us.

e J. Malec v; ce President & General Manager 9903160153 990225 PDR ADOCK 05000272 S PDR 1-50017 Telephone: 440-248-4600 Fax: 440-349-5970

This print Is the exduslve property of CAJON COMPANY. It Is confidential and Is loaned to you for a limited purpose and must be returned on request. Neither this print nor any Information concerning It may be copied, exhibited or furnished to others without the consent of CAJON COMPANY. Moreover. the parts on this print are the subject of Issued patents and/or pending applications and may not be manufactured without permission of CAJON COMPANY.

NOTE: PART NO. SS-( b)- T

1) ALL DIMENSIONS ARE FOR REFERENCE ONLY. SUBJECT TO CHANGE

2) METRIC EQUIVALENTS ARE SHOWN BELOW DECIMAL INCH' DIMENSIONS

3) ALL ENDS IDENTICAL CUSTOMER DRAWING

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PART NO. NPT H F L

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2.84 13/16 1.42-

-v SS-6-T 3/8" 72.1 20 36.1 v

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SWAGELOK COMPANY 29q00 Solon Road, Solon, Ohio 44139-3492 U.S.A.

Public Service Electric & Gas Hancocks Bridge, NJ Nuclear Dept Material Center P.O. #P2 0965486 1000 20 Pcs SS-6-T Product ID R27GE0123B S.C. Electric & Gas Co.

VC Summer Station Highway215 Jenkinsville, SC 29065 P.O.# SR 702966 3 Pcs. SS-6-T Product ID R27GE0123B Telephone: 440-248-4600 Fax: 440-349-5970