MIL-DTL-22777G
Table I - Physical requirements of rubber
Characteristics
Requirements
________________________________________________________________________________
Abrasive index, minimum
(Before and after aging)
Minimum
150
Hardness
(Before and after aging)
Before
After
Minimum
65
65
Maximum
75
80
Volume swell (percentage, maximum)
30
Cut growth after aging (percentage, maximum)
250 1/
Stitch tear
Before and after aging
Pounds/inch, minimum
240 1/
After immersion, lb./inch,
minimum
160 1/
Tear strength
Pounds/inch, minimum
175 1/
1/ This requirement is applicable only when the rubber is used for manufacturing the soles.
3.3 Design and dimensions. The soles shall conform to the design and dimensions specified in Drawing
No. 16-1-500. The heels shall conform to the design and dimensions specified in Drawing No. 16-1-499.
3.4 Construction.
3.4.1 Sole. The sole shall be of a solid rubber construction.
3.4.2 Heels. The heels shall be constructed with a composition core.
3.5 Marking for size, trademark, and mold identification.
3.5.1 Soles. The size and the contractor's trademark or name shall be inscribed in the shank area.
3.5.2 Heels. The size, trademark, and mold identification markings shall be inscribed on either the
wearing surface or on the inside surface.
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