Model: 3166674-1

Setscrew

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.945 inches and 0.950 inches
Fastener Length
Between 0.990 inches and 1.010 inches
Head Style
Headless (setscrew)
Point Length
Between 0.055 inches and 0.060 inches
Point Style
Cup
Internal Drive Style
Hexagon
Thread Diameter
0.250 inches
Width Across Flats
Between 0.125 inches and 0.127 inches
Thready Qty Per Inch (tpi)
28
Material
Steel comp 303
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Thread Series Designator
Unf
NSN
5305-01-064-0498
Part Number
3166674-1
Description
Setscrew
CAGE
59364

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 3166674-1 NSN 5305-01-064-0498

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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