Model: NAS1831AC3B21

Spacing Threaded Standoff

Properties:

Thread Class
3a right internal
Thread Class
3a left internal (includes through thread)
Thread Direction
Right-hand left internal (includes through thread)
Thread Direction
Right-hand right internal
Thread Length
0.250 inches left internal (includes through thread)
Thread Length
0.250 inches right internal
Length
1.313 inches
End Application
A-10 aircraft
Cross-sectional Shape
Octagon
Width Across Flats
0.188 inches
Thready Qty Per Inch (tpi)
40 left internal (includes through thread)
Thready Qty Per Inch (tpi)
40 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
Post, electrical mechanical equipment
Material
Aluminum alloy
Material Specification
Qq-a-225/8 federal specification single material response
Style Designator
Left internal and right internal threads
Thread Series Designator
Unc left internal (includes through thread)
Thread Series Designator
Unc right internal
NSN
5340-01-568-8953
Part Number
NAS1831AC3B21
Description
Standoff,threaded,spacing
CAGE

Part NAS1831AC3B21 NSN 5340-01-568-8953

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:
A
ESD:
A
MMAC:
AH
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
095190
UFC:
49790
LTL:
RATING VARIABLE
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Equipment for Aircraft

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