Model: SM-C-852090-2

Thumbscrew

Special Features:

Color black

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.380 inches
Fastener Length
1.810 inches
Head Style
Knurled no. 1
Head Diameter
Between 0.980 inches and 1.020 inches
Head Height
0.250 inches
Shoulder Diameter
0.500 inches first shoulder
Shoulder Length
0.250 inches first shoulder
First Diameter From Head
Between 0.170 inches and 0.175 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
1.180 inches
Point Style
Flat
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
20
Externally Relieved Body Diameter Quantity
1
Shoulder Shape
Round first shoulder
Material
Steel comp 303
Material Specification
Astm a582 assn standard single material response
Surface Treatment
Oxide
Surface Treatment Specification
Mil-c-13924 cl 4 military specification single treatment response
Thread Series Designator
Unc
NSN
5305-01-160-1981
Part Number
SM-C-852090-2
Description
Thumbscrew
CAGE
80063

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 SM-C-852090-2 NSN 5305-01-160-1981

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:
A
ESD:
ESD:
MMAC:
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

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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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