Model: 689-1138-001

Spacing Threaded Standoff

Properties:

Thread Class
2b left internal (includes through thread)
Thread Class
2b right external
Thread Direction
Right-hand left internal (includes through thread)
Thread Direction
Right-hand right external
Thread Length
0.2500 inches right external
Thread Length
0.1900 inches left internal (includes through thread)
Diameter
0.2500 inches
Length
0.3200 inches
Cross-sectional Shape
Round
Thready Qty Per Inch (tpi)
40 left internal (includes through thread)
Thready Qty Per Inch (tpi)
40 right external
Thread Size
0.1120 inches right external
Thread Size
0.1120 inches left internal (includes through thread)
Right Projection Diameter
0.1120 inches
Right Projection Length
0.2500 inches
Material
Steel comp 303 standoff
Material Specification
Astm-a-582 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Style Designator
Left internal and right external thread
Thread Series Designator
Unc left internal (includes through thread)
Thread Series Designator
Unc right external
NSN
5340-01-445-4140
Part Number
689-1138-001
Description
Standoff,threaded,spacing
CAGE
78711

Part 689-1138-001 NSN 5340-01-445-4140

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:
A
ESD:
ESD:
MMAC:
BA
CRITL:
X

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