Model: ST4M138-04-40

Spacing Threaded Standoff

Properties:

Thread Class
2b left internal (includes through thread)
Thread Class
2b right internal
Thread Direction
Right-hand left internal (includes through thread)
Thread Direction
Right-hand right internal
Thread Length
0.500 inches left internal (includes through thread)
Thread Length
0.500 inches right internal
Length
4.00 inches
End Application
F-15sa
Cross-sectional Shape
Hexagon
Width Across Flats
0.250 inches
Thready Qty Per Inch (tpi)
40.0 left internal (includes through thread)
Thready Qty Per Inch (tpi)
40.0 right internal
Thread Size
0.112 inches left internal (includes through thread)
Thread Size
0.112 inches right internal
Part Name Assigned By Controlling Agency
Spacer, sleeve-hex, threaded, self-locking
Material
Aluminum alloy 2024 standoff
Material
Stainless steel insert
Style Designator
Left internal and right internal threads
Thread Series Designator
Unc left internal (includes through thread)
Thread Series Designator
Unc right internal
NSN
5340-01-624-6343
Part Number
ST4M138-04-40
Description
Standoff,threaded,spacing
CAGE
76301

Part ST4M138-04-40 NSN 5340-01-624-6343

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
40280
FIIG:
A08900
Concept No.:
1
App. Key:
B
Cond. Code:
1
Status:
A

Material Classification

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

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