Model: MS18063-12

Setscrew

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.250 inches
Fastener Length
0.250 inches
Head Style
Headless (setscrew)
Locking Feature
Patch threads or pellet threads or strip threads
Point Style
Cup
Internal Drive Style
Hexagon
Thread Diameter
0.164 inches
Width Across Flats
Between 0.078 inches and 0.079 inches
Thready Qty Per Inch (tpi)
32
Hardness Rating
33.0 rockwell c and 40.0 rockwell c
Material
Steel comp 4037 or steel comp 4137 or steel comp 4140 or steel comp 8630 or steel comp 8740
Material Specification
66 federal standard all material responses
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416 type 2 class 3 federal specification all treatment responses
Thread Series Designator
Unc
NSN
5305-00-931-3142
Part Number
MS18063-12
Description
Setscrew
CAGE
96906

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

Part MS18063-12 NSN 5305-00-931-3142

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06672
FIIG:
A003B0
Concept No.:
App. Key:
SQ
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:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 7318152000
  • SITC: 69421
  • End Use: Iron and steel products, other
  • NAICS: 332722
  • USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment

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