MIL-DTL-5523E
6.3 First article. The contracting officer should include specific instructions in acquisition documents regarding
arrangements for examinations, approval of first article test results, and disposition of first article samples. Invitations
for bids should provide that the Government reserves the right to waive the requirement for samples for first article
inspection to those bidders offering a product which has been previously acquired or tested by the Government, and
that bidders offering such products, who wish to rely on such production or test, must furnish evidence with the bid
that prior Government approval is presently appropriate for the pending contract.
6.4 Detail and assembly drawings. Detail and assembly drawings should be furnished with each new model valve
submitted for qualification tests. Assembly drawings should show a cutaway section of all details in their normal
assembled position and should carry material, finish, plating, and PIN's of all details and subassemblies. The
following data should be furnished on or together with all assembly drawings:
a. Mounting position and dimensions.
b. Port dimensions.
c. Over-all dimensions.
d. Flow capacity.
e. Pressure range.
f. Dry weight.
g. Method of adjusting pressure rating.
h. Dismantling procedure and procedure for replacing synthetic packings, if needed.
i. Maximum calculated stress of springs and design calculations illustrating the springs endurance
limits under adverse tolerances.
6.5 Subject term (key word) listing.
Aircraft
Rated flow
6.6 Changes from previous issue. Marginal notations are not used in the revision to identify changes with respect to
the previous issue due to the extensiveness of the changes.
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