Specification Revision List April 12 2012 Pratt & Whitney
Specification Revision List Pratt & Whitney April 12, 2012
Specification Revision List Pratt & Whitney April 12, 2012
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PWA<br />
P&W Production & Development <strong>Specification</strong>s - (PWA)<br />
PWA Spec Codes<br />
C = Controlled<br />
E = Engineering Source Approved<br />
I = Engineering source Approved for Ingot and/or Forging Stock<br />
N = Sources <strong>List</strong>ed in <strong>Specification</strong><br />
P = Patent Notice Applies<br />
Q = Sources Qualified by MCL (PWA Source Qualification <strong>List</strong>)<br />
PWA <strong>Specification</strong>s Inactive for New Designs (In Italics) - Highlighted in Green - * to the left indicates revision<br />
* Revised Since Previous Edition of 1/17/<strong>12</strong><br />
+ Added Since Previous Edition of 1/17/<strong>12</strong><br />
<strong>Revision</strong> Date 4/20<strong>12</strong><br />
Updated Quarterly<br />
* 424H N<br />
425H<br />
Q<br />
426E<br />
N<br />
427G<br />
N<br />
428A<br />
N<br />
429D<br />
N<br />
433AA<br />
N<br />
434E<br />
N<br />
439D<br />
N<br />
441D<br />
N<br />
442G<br />
N<br />
444G<br />
N<br />
445H<br />
N<br />
446D<br />
N<br />
447B<br />
N<br />
448J<br />
N<br />
* 449G N<br />
450G<br />
N<br />
451AA<br />
N<br />
452L<br />
N<br />
453C -<br />
454T<br />
N<br />
455T<br />
N<br />
456T<br />
N<br />
457M<br />
N<br />
458A (Obsolete)<br />
N<br />
459M<br />
N<br />
460P<br />
E<br />
461C -<br />
462C -<br />
463C -<br />
464G<br />
N<br />
465M<br />
N<br />
466H<br />
N<br />
467G<br />
N<br />
468D<br />
N<br />
469B<br />
N<br />
472A<br />
Q<br />
474T<br />
N<br />
475E<br />
N<br />
476E -<br />
477M<br />
N<br />
478F<br />
N<br />
479D<br />
N<br />
482H -<br />
483C<br />
N<br />
484J<br />
N<br />
485D<br />
N<br />
486G<br />
N<br />
487G<br />
N<br />
488L<br />
N<br />
489D<br />
N<br />
491A (Obsolete)<br />
N<br />
492C -<br />
* 493H N<br />
496D -<br />
497A<br />
N<br />
498H<br />
N<br />
499M<br />
N<br />
500D (Obsolete)<br />
* 504C -<br />
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