Block and Tail Style 4

Drawing Item Identification:

A: Block width in inches
B: OA thickness in inches
C: Tail in inches
D: OA width in inches

BLOCK AND TAIL STYLE 4 DIAGRAM1 LARGE

ABCD
1-1/2"1-3/4"3/4"5"
1-3/4"1-3/4"9/16"6"

Material Specifications

Physical TestsSpecificationsNatural 1103Natural 1177Natural 1187Neoprene 1501
Tensile StengthDie C ASTM D4123000 psi (min)2500 psi (min)2500 psi (min)2500 psi (min)
Elongation at RuptureASTM D412450% (min)450% (min)400% (min)400% (min)
300% ModulusASTM D412900 psi (min)900 psi (min)-900 psi (min)
Durometer Hardness, Shore Type AASTM D224060 - 7045 ± 550 - 6060 - 70
Water Absorption70 Hrs. @ 212°F ASTM D47110% change in volume (max)10% by weight (max)10% by volume (max)10% by weight (max)
Compression SetASTM D395 Method B 22 Hrs/ @ 158°F30% (max)30% (max)25% (max)30% (max)
Tensile Strength After Oxygen Bomb AgingASTM F57280% (min) of tensile strength80% (min) of tensile strength-80% (min) of tensile strength
Low Temperature BrittlenessASTM D2137 Method A, 9.3.2Non-Brittle after 3' @ -40°CNon-Brittle after 3' @ -40°CNon-Brittle after 3' @ -40°CNon-Brittle after 3' @ -25°C

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