Model: 18-3137

Snap-in Threaded Standoff

Properties:

Thread Class
2a left external
Thread Class
2b right internal
Thread Direction
Left-hand left external
Thread Direction
Right-hand right internal
Thread Length
0.265 inches left external
Width Between Flats
0.375 inches
Length
4.000 inches
Thready Qty Per Inch (tpi)
32 left external
Thready Qty Per Inch (tpi)
32 right internal
Thread Size
0.138 inches right internal
Thread Size
0.190 inches left external
Criticality Code Justification
Zzzy
Right Projection Diameter
0.190 inches
Right Projection Length
0.374 inches
Right End Chamfer Angle
Between 25.0 degrees and 35.0 degrees
Material
Steel comp 303 standoff
Material Specification
Stm a581 assn standard single material response standoff
Surface Treatment
Passivate standoff
Special Test Features
Special quality control testing
Surface Treatment Specification
Qq-p-35, type ii federal specification single treatment response standoff
Style Designator
Left internal and right external thread
Test Data Document
81349-mil-p-23199 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Thread Series Designator
Unc right internal
Thread Series Designator
Unf left external
Departure From Cited Document
As modified by material and locking featur ( as applicable )
Reference Number Differentiating Characteristics
As differentiated by material which must conform to ships parts control center special quality control provisions
NSN
5340-01-448-3222
Part Number
18-3137
Description
Standoff,threaded,snap-in
CAGE
27192

Part 18-3137 NSN 5340-01-448-3222

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
40279
FIIG:
A08900
Concept No.:
1
App. Key:
C
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:
CRITL:
S

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.2000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
51
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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