Model: MIL-T-81556

Structural Beam

Properties:

Fabrication Method
Extruded
Overall Height
2.840 inches
Length
12.000 feet
Left Side Top Flange Thickness
0.100 inches
Right Side Top Flange Thickness
0.100 inches
End Application
B-2 bomber
Basic Shape Style
T shape
Leg Thickness
0.100 inches
Left Side Top Flange Distance To Center Of Both Flanges
2.340 inches
Right Side Top Flange Distance To Center Of Both Flanges
2.560 inches
Fillet Radius Where Top Left Flange Joins Web Flange/leg
0.250 inches
Fillet Radius Where Top Right Flange Joins Web Flange/leg
0.250 inches
Top Flange Width
4.900 inches
First Tip Style
Square end
Second Tip Relationship To First Tip
Identical
Third Tip Relationship To Preceding Tips
Identical w/first tip
Right Top Inside Angle
55.0 degrees
Left Top Inside Angle
125.0 degrees
Heat Treatment
Annealed
Material
Titanium alloy, mil-t-81556, comp ab-1
Material
Titanium alloy, mil-t-81556, comp ab-1
Nondefinitive Specification/std Data
Composition ab-1 and condition a
NSN
9540-01-428-5985
Part Number
MIL-T-81556
Description
Beam,structural
CAGE
81349

Part MIL-T-81556 NSN 9540-01-428-5985

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
37018
FIIG:
A13100
Concept No.:
App. Key:
AS
Cond. Code:
2
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
BQ
CRITL:
X

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