Center Dome Style 4

Drawing Item Identification:

A: OA height in inches
B: Edge to center width in inches
C: Edge of dome to center in inches
D: Tail width in inches
E: Tail thickness in inches
R1: Dome radius in inches
R2: Dome edge radius in inches
R3: Radius in inches

Center Dome Style 4

ABCDER1R2R3
1-1/4"4"1"1-1/2"1/2"FLAT 1"1/2"
1-1/2"4-1/2"1-5/8"2-1/2"1" FLAT 1/16" 1/16"
1-7/8"2-3/8"1/4"1-1/8"7/8" FLAT 3/4"  1/4"
2-1/4"3"7/8"1-1/2"1" 4-5/8" 5/8" 1/8"
2-1/4"5"2"2-1/4"5/8" 8" 1/4" 1/4"
2-3/8"5"2"2-1/4"3/4" 8"  1/4" 1/4"
2-3/4"3-15/16"1-11/16"2"1-1/2" FLAT  1/4"  1/4"
2-3/4"5"2"2-1/4"1-1/8" 8"  1/4"  1/4"

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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