Model: 4210839

Thumbscrew

Properties:

Thread Class
2b
Thread Direction
Right-hand
Thread Length
2.000 inches
Fastener Length
5.310 inches
Head Style
Thumb no. 1
Head Height
0.380 inches
Width Between Flats
0.510 inches
Thread Diameter
0.312 inches
Thready Qty Per Inch (tpi)
18
Material
Steel
Surface Treatment
Cadmium
Thread Series Designator
Unc
Specification Data
80212-4210839 professional/industrial association specification
NSN
5305-01-357-9346
Part Number
4210839
Description
Thumbscrew
CAGE
T0720

An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).

Part 4210839 NSN 5305-01-357-9346

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06673
FIIG:
A003B0
Concept No.:
App. Key:
SR
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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