ML19267A327

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Forwards Drawings C001-4-9119 Revison B,0-20-010 Revision A,2-20-020 Revision A,0-20-030 Revision a & 0-20-100D Revision A,W/Gasket Matl Requirement & Addition of Continuous Spacer for Secondary Lid Seal for Cask HN-100
ML19267A327
Person / Time
Site: 07109079
Issue date: 12/20/1978
From: Trigilio G
HITTMAN CORP.
To: Macdonald C
NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
References
HN-S6799, NUDOCS 7901080306
Download: ML19267A327 (7)


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Hittman N

Nuclear &

Development Corporation 9190 Rec Branch Road

- 5 d..s Columbia, Maryland 21045 301/730-7800 Refer to-g 12 03 HN-S6799 3 fl "i,.

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1978 i

Mr. Charles MacDonald U.S. Nuclear Regulatory Commission 9217 Maryland National Bank Bldg.

Washington, D. C.

20555

Subject:

Certification of HNDC Model HN-100 Series 2 Shipping Cask Addendum No. 1

Reference:

NRC Lecter FCTR: RHO 71-9079 HNUC Letter Dated 9/29f78 HN-100 Series 2 Shippidg Cask Certification No. 9079 Rev. O J

Dear Mr. MacDonald:

Enclosed please find eight (8)copiefofDrawingsNos.C001-4-9119 Rev. B (6 sheets) which are to supersede the previously issued (Ref: HNDO Letter 9/29/78) Drawing N hs. O-20-010, Rev. A (2 sheets),

G-20-020, Rev. A (2 sheets), G-20-03 ), Rev. A (1 sheet), and 0. 100D, Rev. A (1 sheet).

These ne /ly submitted drawings specify the gasket material requirement and show!the addition of a continuous

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spacer for the secondary lid seal.

This continuous spacer provides I

the protection of the secondary seal during a top one-foot drop.

I'our cooperation in expediting the r.'e\\ view of this addendum is greatly appreciated.

If further information'is required, please contact the under.igned.

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Very truly yours, j'

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George Trigilio, Jr.

'7 Engineering Group Manager i~'

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LMED ON APERTURE CARD NO.

No N'8b M 6/030 306