Model: 1644

Spacing Threaded Standoff

Properties:

Thread Class
2b left internal (includes through thread)2a right external
Thread Direction
Right-hand left internal (includes through thread)
Thread Direction
Right-hand right external
Flange Thickness
1.000 inches
Length
1.250 inches
Flange Width Across Flats
0.250 inches
Thready Qty Per Inch (tpi)
32 left internal (includes through thread)
Thready Qty Per Inch (tpi)
32 right external
Thread Size
0.138 inches left internal (includes through thread)
Thread Size
0.138 inches right external
Material
Copper alloy 360 standoff
Material Specification
Qq-b-626 federal specification single material response standoff
Surface Treatment
Cadmium standoff and chromate standoff
Surface Treatment Specification
Qq-p-416 type 2 class 2 federal specification single treatment response standoff
Style Designator
Flanged with left internal thread
Thread Series Designator
Unc left internal (includes through thread)
Thread Series Designator
Unc right external
NSN
5340-00-185-0375
Part Number
1644
Description
Standoff,threaded,spacing
CAGE
91833

Part 1644 NSN 5340-00-185-0375

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:
ESD:
MMAC:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

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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