MIL-DTL-81716A
TABLE I. First Article Inspection Tests and Samples 1/
Physical Property
Paragraph
Specimen
Tests
Number
Unaged
Hardness
4.5.2.1
1 ASTM Hardness disc (.250 in. (6.35 mm) thick
x 1. 0 in. (25.4 mm) diameter)
Tensile strength
4.5.2.2
2 SAE AS33931, MS3393-16
Elongation
2 SAE AS33931, MS3393-16
4.5.2.3
Specific gravity
3 SAE AS33931, MS3393-16
4.5.2.4
Permanent set
4.5.2.5
2 SAE AS33931, MS3393-3
Temperature retraction
4.5.2.6
3 SAE AS33931, MS3393-16
Corrosion & adhesion
4.5.2.8
12 SAE AS33931, MS3393-16
Air Aged
Hardness
4.5.2.1
1 ASTM Hardness disc (.250 in. (6.35 mm) thick
x 1. 0 in. (25.4 mm) diameter)
Tensile strength
4.5.2.2
2 SAE AS33931, MS3393-16
Elongation
4.5.2.3
2 SAE AS33931, MS3393-16
Permanent set
4.5.2.5
2 SAE AS33931, MS3393-3
Oil Aged at 158F (70°C)
4.5.2.6
3 SAE AS33931, MS3393-16
Temperature retraction
Oil Aged at 275 F (135°C)
1 ASTM Hardness disc (.250 in. (6.35 mm) thick
4.5.2.1
Hardness
x 1. 0 in. (25.4 mm) diameter)
2 SAE AS33931, MS3393-16
4.5.2.2
Tensile strength
4.5.2.3
2 SAE AS33931, MS3393-16
Elongation
4.5.2.5
2 SAE AS33931, MS3393-3
Permanent set
4.5.2.7
3 SAE AS33931, MS3393-16
Volume change
Performance Tests
SAE AS33931, MS3393 Packing
-3 Size
-4 Size
-8 Size -12 Size
-16 Size
Installation stretch at
12
4.5.2.9.1
normal temperature
Installation stretch at
-20F (-29°C)
6
4.5.2.9.2
9
4.5.2.10
Crush
9
4.5.2.11
Extrusion
4
4.5.2.12
4
4
4
Impulse
1/ All SAE AS33931, MS3393 packings shall be examined in accordance with 4.5.1 before
the initiation of first article tests.
5
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