Model: 1581-H-A-1.500-3

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
Between 1.495 inches and 1.505 inches
Cross-sectional Shape
Hexagon
Width Across Flats
Between 0.495 inches and 0.505 inches
Thready Qty Per Inch (tpi)
28 left internal (includes through thread)
Thready Qty Per Inch (tpi)
28 right internal
Thread Size
0.250 inches left internal (includes through thread)
Thread Size
0.250 inches right internal
Material
Aluminum alloy 2017 or aluminum alloy 2011
Material Specification
Qq-a-225/5 t4 federal specification 1st material response or qq-a-225/3 t3 federal specification 2nd material response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625 type 2 cl 1 military specification single treatment response
Style Designator
Left internal and right internal threads
Thread Series Designator
Unf left internal (includes through thread)
Thread Series Designator
Unf right internal
NSN
5340-01-420-3013
Part Number
1581-H-A-1.500-3
Description
Standoff,threaded,spacing
CAGE
51506

Part 1581-H-A-1.500-3 NSN 5340-01-420-3013

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:
SX
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:
Construction Materials

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