Design and construction changes.
Changes in design. No changes shall be made in the
design or materials of a valve that has been qualified in accordance
with this specification, except when the changes are approved by the
Changes in part numbers. Part number changes shall
be controlled in accordance with 1-302.14 of MIL-STD-1OO.
Changes in the parts list. Changes to the approved
parts list shall be governed by the requirements specified in 18.104.22.168.
Changes in vendors. Changes in a vendor or fabrication
source of those parts used in the qualified valve shall be in accordance
with the following procedure: The manufacturer shall prepare and submit
to the qualifying activity a list of tests to demonstrate that the valve
meets all specification requirements for an alternative vendor source.
The specific tests required to substantiate an alternate vendor as a
supplier of a valve part shall be defined. The fabrication source of
selected vendor components will be included in this list. The list
shall be subject to approval by the qualifying activity. The contractor
thereafter shall be responsible for insuring that all parts, components,
and assemblies on the substantiation list comply with the qualified
controlled. The contractor shall be responsible for performance of
substantiation tests to establish satisfactory alternate vendors or
fabrication sources. A fabrication source is defined as the prime
physical source producing the part, component, or assembly. Changes of
fabrication location, such as to another plant of an individual vendor,
shall be construed as a change of fabrication source.
Responsibility for changes. Approval by the qualifying
activity of changes to the qualification test valve does not relieve the
manufacturer of full responsibility for the results of such changes on
any valve characteristic.
QUALITY ASSURANCE PROVISIONS.
Responsibility for inspection. Unless otherwise
specified in the contract, the contractor is responsible for the performance
of all inspection requirements as specified herein. Except as otherwise
specified in the contract, the contractor may use his own or any other
facilities suitable for the performance of the inspection requirements
specified herein, unless disapproved by the Government. The Government
reserves the right to perform any of the inspections set forth in the
specification where such inspections are deemed necessary to assure
supplies and services conform to prescribed requirements