Model: 20670-1

Thumbscrew

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.188 inches
Fastener Length
0.375 inches
Head Style
Knurled no. 1
Head Diameter
0.375 inches
Head Height
0.125 inches
First Diameter From Head
Between 0.090 inches and 0.098 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
0.187 inches
Point Style
Flat
Thread Diameter
0.138 inches
Thready Qty Per Inch (tpi)
32
Externally Relieved Body Diameter Quantity
1
Material
Steel comp 303
Material Specification
Qq-s-764 cond a federal specification single material response
Surface Treatment
Passivate
Surface Treatment Specification
Mil-f-14072, finish e300 military specification single treatment response
Thread Series Designator
Unc
NSN
5305-00-143-1330
Part Number
20670-1
Description
Thumbscrew
CAGE
14802

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 20670-1 NSN 5305-00-143-1330

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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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