Model: MIL-T-81556

Structural Beam

Properties:

Fabrication Method
Extruded
Overall Height
3.000 inches
Length
12.000 feet
Left Side Top Flange Thickness
0.390 inches
Right Side Top Flange Thickness
0.390 inches
Basic Shape Style
T shape
Leg Thickness
0.460 inches
Left Side Top Flange Distance To Center Of Both Flanges
2.410 inches
Right Side Top Flange Distance To Center Of Both Flanges
2.790 inches
Fillet Radius Where Top Left Flange Joins Web Flange/leg
0.190 inches
Fillet Radius Where Top Right Flange Joins Web Flange/leg
0.190 inches
Top Flange Width
5.200 inches
First Tip Style
Square w/ inner and outer corner radii
First Tip Inner Radius
0.062 inches
First Tip Outer Radius
0.062 inches
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
Material
Titanium alloy, mil-t-81556
Nondefinitive Specification/std Data
Composition ab-1 (6al-4v) and condition annealed
NSN
9540-01-444-0791
Part Number
MIL-T-81556
Description
Beam,structural
CAGE
81349

Part MIL-T-81556 NSN 9540-01-444-0791

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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