MIL-DTL-5516D
4.3.2 Test report. Contractor shall furnish test reports in accordance with MIL-HDBK-831, the
requirements below, any other requirement specified by the procuring activity.
a. The report shall contain a tabulation of the physical property values obtained during first
article tests.
b. The report shall contain a complete set of photographs showing the packing as
mounted for each test and showing details of any failures encountered.
c. Diagrams of test setups shall be provided when not self-explanatory by the
photographs.
4.3.3 Tests. First article inspection shall consist of all the following tests:
Class A
(a)
Examination of product
(4.4.1)
(b)
Specific gravity (new only)
(4.5.1.4)
(c)
Shore durometer hardness (new, air and oil aged)
(4.5.1.1)
(d)
Tensile strength (new, air and oil aged)
(4.5.1.2)
(e)
Ultimate elongation (new, air and oil aged)
(4.5.1.2)
(f)
Permanent set (new, air and oil aged)
(4.5.1.2 and
4.5.1.3)
(g)
Corrosion and adhesion (new only)
(4.5.3)
(h)
Volume change (oil aged only)
(4.5.2.2)
(i)
High and low temperature performance
(4.5.4.1 and
4.5.4.2)
(j)
Endurance cycling tests
(4.5.5.1 and
4.5.5.2)
4.4 Conformance inspection.
(a)
Examination of product
(4.4.1)
(b)
Batch tests
(4.4.2)
(c)
Finished product tests
(4.4.3)
(d)
Process monitoring tests
(4.4.4)
4.4.1 Examination of product. Each packing and gasket shall be carefully examined to determine
conformance to the applicable drawings, workmanship, finish, marking and applicable standards.
4.4.1.1 Dimensions. Packings shall be checked for cross-sectional dimensions and inside and
outside diameters. All dimensions shall conform to the applicable standards as specified in 3.4.1,
"Shape and dimensions." The cross section and stack height of V-ring packings shall be checked
in "go" and "no go" templates similar to the type indicated in figure 1. Diameters and concentricity
of V-rings shall be checked as shown in figure 2, sheets 1 and 2. The general type of gage
shown in figures 1 and 2 may be used in applicable form on other types of packing.
4.4.2 Batch tests. The batch shall consist of the quantity of material compounded at any one
time and ready for molding and curing into the finished product. Acceptance of the batch shall in
no case be construed as a guaranty of the acceptance of the finished product.
4.4.2.1 Test specimens. Test specimens shall be molded from each batch and finished with the
same state of cure as the finished product. Test specimens for the purpose of batch testing shall
consist of one compression molded hardness specimen (.25 inch (6.35mm) thick and 1 inch
(25.4mm) diameter minimum) and three dumbell specimens cut with a C die, conforming to
ASTM D412, obtained from one .075 inch (1.905mm) thick platen sheet.
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