Questions_and_Answers_W15QKN-16-R-0105_Rev_1.pdf

W15QKN-16-R-0105 Questions and Answers

Question:

A question was raised regarding the design to the purging valve which was not included in the original sources sought W15QKN-15-X-7478. The Sources Sought included Performance Purchase Description AR-PD-157 which, in turn, cited 4 drawings for stem adapters only.

Please provide us with the design, specifications or a detailed description of the purging valve that the Army is using in their boresight telescope P/N 13026057 NSN 1240-01-563-7476 for its maintenance/repurging with nitrogen.

Government Response:

The upcoming competition for this telescope is “build to specification” and not “build to print;” hence, only the AR-PD-157 will be provided to any prospective offeror other than the solicitation itself.

The performance requirement concerning purging is found in 3.5.10 of AR-PD-157.

The four stem adapters in AR-PD-157 are not part of this competition, only the telescope.

Thank you for your interest in this competition

Question:

Some of the details of the supplied document are not fully clear. For example when the spec calls out magnification to be: 5x minimum with a 5% tolerance. Example, would a telescope with a magnification of 9 be acceptable?

Government Response:

"Tolerance" is commonly defined as an allowable deviation from a standard. The required magnification is 5X or better with a 5% tolerance. If the proposed telescope doesn't have a 5X or better magnification, it would still meet the minimum requirement if it is within a 5% tolerance of 5X, which is a 4.75X magnification.