ML20142A009

Advises That Certificate of Compliance 9168 for Model CNS 8-120B Amended to Authorize Use of O-ring Seal Gasket in Accordance w/860312 Request.Authorization Shall Expire on 860430.Approval Record Encl

ML20142A009
Person / Time
Site:	07109168
Issue date:	03/13/1986
From:	Macdonald C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
To:	Kinter S CHEM-NUCLEAR SYSTEMS, INC.
References
NUDOCS 8603190217
Download: ML20142A009 (2)

Text

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FCTC:PHO j 71-9168 i

Chen-t'uclear Systens, Inc.

ATTH: l's. Susan Kintner 220 Stoneridge Drive Colunbia, SC 29210 ,

Centlemen:

As requested by Chen-Nuclear Systems, Inc. application dated March 12, 1936 and pursuant to 10 CFR Part 71, Certificate of Compliance No. 9168 for the t'odel flo. CfiS 8-1208 is anended to authorize the 0-ring seal casket in accordance with Chen-Muclear Systen, Inc. letter dated f' arch 12, 1986. All other conditions of Certificate of Conpliance No. 9163 shall remain the sane.

This authorization shall expire April 30, 1986.

F00 THE U.S. NI!Cl.EAD REGltLATORY C0"f81SSIOPI Cr icinal Sig.. _ ,

marn E. PM0 DONALD Charles E. PacDonald, Chief Transportation Certification Branch nivision of Fuel Cycle and ,

l'aterial Safety, fiMSS

Enclosure:

Approval Pecord l l

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Mr. Liendell Carriker Department of Transportation l Distribution: w/ encl Docket File NRC PDR IE HQ Regions (5)

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Transportation Certification Franch Approval Record ffodel No. CNS 8-120B Package

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Docket No. 71-9163 By application dated f? arch 12, 1986, Chem-Nuclear Systens, Inc. requested a change to Certificate of Corpliance "o. 9168 to allow the use of a Parker 1/4-inch 0-ring or equivalent of a 90 + 0, -10 durometer. The 0-ring groove specified in Detail C of CP!SI Drawing C-110-E-007 (fiP)

Rev. C is sized to the dimensions given in the design table of the Parker 0-ring Reference Guide. Due to a drafting error, a 0.250-inch value was aiven rather than the 0.275 + 0.006-inch actual dimension of the Parker 1/4-inch gasket. The tolerance value was also left off of the duroneter rating.

1 A revision of the CNSI Drawing Mo. C-110-E-007 will be fon. carded to flF l '

which incorporates the above changes. At that tire, the Certificate or Conoliance eill be amended.  ;

j The above change will enhance the ability of the package to meet the l requirerents of 10 CFR Part 71.

l Or131r' ct ened by c.t::2. -. aGMuD Charles E. !?acDonald, Chief Transportation Certification Branch Division cf ree' Cycle and t'aterial Safety, t:"SS Date: vnR13 M l

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