Model: 253122

Thumbscrew

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.250 inches
Fastener Length
0.500 inches
Head Style
Thumb no. 3
Head Height
Between 0.453 inches and 0.483 inches
Width Between Flats
Between 0.395 inches and 0.425 inches
First Diameter From Head
0.120 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
0.250 inches
Point Style
Flat
Thread Diameter
0.190 inches
Thready Qty Per Inch (tpi)
32
Externally Relieved Body Diameter Quantity
1
Material
Steel comp 302
Material Specification
Mil-s-7720 military specification single material response
Surface Treatment
Passivate
Surface Treatment Specification
520002 fscm 33525 mfr ref single treatment response
Thread Series Designator
Unf
NSN
5305-00-231-2455
Part Number
253122
Description
Thumbscrew
CAGE
61423

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 253122 NSN 5305-00-231-2455

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:
0.1000lbs
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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