MIL-DTL-45301E
2.3 Order of precedence. In the event of a conflict between the text of this specification
and the references cited herein, the text of this specification takes precedence. Nothing in this
document, however, supersedes applicable laws and regulations unless a specific exemption has
been obtained.
3. REQUIREMENTS
3.1 First article. When specified (see 6.2), a sample shall be subjected to first article
inspection in accordance with 4.1.2.
3.2 Material.
3.2.1 Tread elastomer. The chemical compounding of tread elastomer shall be such that
all classes and sizes of both groups are black in color. When Group B, P-12 material is furnished,
the compound formulation is in accordance with table I (see 4.6.1).
TABLE I. Compound formulation Group B, P 12 material.
Relative
Materials
weight
Chemical composition
SBR 1500
70.00
Polymer
Cis-4 1203 or CB 220 1/
30.00
Polymer
Zinc oxide
3.00
Stearic acid
2.00
N220 carbon black
62.00
Flexzone 7-L 1/
3.00
(N-1, 3-Dimethybutyl-N'-phenyl-p-
phenylenediamine)
Sunolite 100 1/
1.50
(Blend of Waxy Hydrocarbons)
Agerite Resin D 1/
2.00
(Polymerized 2, 2,4-trimethyl-1, 2-dihydroquinoline)
Sundex 790 1/
2.00
Oil
Nobs special 1/
1.20
[N-oxydiethylene-2-benzothiazole-sulfenamide
(2-morpholinothio) benzothiazole]
Santogard PVI 1/
0.20
[N-(cyclohexylthio) phthalimide]
Sulfur
1.60
178.50
Total Formula Weight
1/ Substitution may be made with chemical equivalents from other manufacturers.
3.2.2 Tie gum. When specified (see 6.2), tie gum shall be elastomer. Tie gum shall not
include any reclaimed rubber (see 4.6.2).
3
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