ML20141F077

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Application for Rev to Certificate of Compliance 9168 for Parker 1/4 Inch O-ring.Due to Drafting error,0.250 Inch Value Given & Tolerance Value Left Off Durometer Rating
ML20141F077
Person / Time
Site: 07109168
Issue date: 03/12/1986
From: Poppe L
CHEM-NUCLEAR SYSTEMS, INC.
To: Macdonald C, Mcdonald C
NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
References
26607, RA-0141-6, RA-141-6, NUDOCS 8604220457
Download: ML20141F077 (2)


Text

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RETURN TO 396-55 Pog 7/- 7/d amACHEM-NUCLEAR SYSTEMS,INC.

220 Stonerdge Drive Cdumtxa, South Cardina 29210 March 12,1986 RA-0141 -6

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RECENED Mr. Charles E. Mcdonald Chief, Transportation Certif' cation Branch 2

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~2 Division of Fuel Cycle and Material Safety a gtcomR1 U. S. Nuclear Regulatory Commission

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Washington, D.C.

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REFERENCE:

Docket 9168 g.

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Dear Mr. Mcdonald:

Chem-Nuclear Systems, Inc. requests a change to Certificate of Compliance 9168 to allow the use of a Parker 1/4 inch 0-ring or equivalent of a 70 + 0, -10

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durometer.

The 0-ring groove specified in Detail C of CNSI Drawing C-Il0-E-007 (NP) 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 given rather than the 0.275 + 0.006 inch actual dimension of the l

Parker 1/4" gasket. The tolerance vallie was also left off of the durometer l

rating.

I This request supercedes the request of February 26, 1986, for a gasket size change.

A new revision of the drawing CNSI C-110-E-007 will oc forwarded to your office within 10 days with the above changes.

Very truly yours, CHEM-NUCLEAR SYSTEMS, INC.

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