Model: SCH-342

Thumbscrew

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
2.250 inches
Fastener Length
2.500 inches
Head Style
Knurled no. 1
Head Diameter
1.250 inches
Head Height
0.500 inches
Point Length
0.250 inches
Point Diameter
0.293 inches
Point Style
Universal
Thread Diameter
0.375 inches
Thready Qty Per Inch (tpi)
16
Point Swivel Included Angle
7.5 degrees
Point Chamfer Angle
70.0 degrees
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel
Surface Treatment
Oxide
Thread Series Designator
Unc
NSN
5305-01-051-8030
Part Number
SCH-342
Description
Thumbscrew
CAGE
01226

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 SCH-342 NSN 5305-01-051-8030

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

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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