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|  MIL-L-23822C(AS)
3.2 (Cont'd)
accordance with Section 4, at an activity designated by the procuring
activity for the purpose of demonstrating that the production equipment
methods and criteria proposed are suitable and will yield rocket engines
meeting the requirements of this specification. No production equipments
or lot samples shall be delivered prior to the approval of the prepro -
duction samples.
Qualified producer. In the event of interruption
3.2.1
of production by a previously qualified producer, the procuring activity
shall, unless otherwise specified in the contract or purchase order,
require test of additional preproduction rocket engines in number as
specified in the contract prior to the resumption of production. Any
production by the contractor prior to the approval of the preproduction
lot shall be at the contractor's risk.
3.3
General requirements.
*
3.3.1
Construction and dimensions. The rocket engine shall
be constructed in strict conformance to Naval Air Systems Command
(NAVAIR) Drawings 2522505 and 589 AS100.
*
3.3.2
Materials. Unless otherwise specified in the contract
or purchase order, all materials entering into the final assembly of the
rocket engine shall conform strictly to the applicable specification.
Materials which are not covered by specification or which are not speci-
fically designated herein shall be of the best quality, of the lightest prac-
ticable weight consistent with strength and durability, and entirely suited
to the purpose for which intended under all conditions of test and sertice
operation.
3.3.2.1
Substitute materials.
Recommendations concerning the
use of a superior substitute for any part of material specified herein
shall be accompanied by a description of the proposed substitute and the
reasons therefore, together with evidence to substantiate any claim as
to its suitability. At the discretion of NAVAIR, test samples may be
required to prove the suitability of the proposed substitute.
3.3.2.2
Magnesium. The use of magnesium shall require the
specific approval of NAVAIR or its appointed agency.
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