Model: 34785-3

Thumbscrew

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 2.875 inches and 2.885 inches
Fastener Length
Between 3.733 inches and 3.750 inches
Head Style
Knurled no. 1
Head Diameter
Between 1.035 inches and 1.041 inches
Head Height
Between 0.090 inches and 0.110 inches
Point Length
Between 0.028 inches and 0.030 inches
Point Diameter
Between 0.186 inches and 0.187 inches
Point Style
Flat
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
16
Hardness Rating
24.0 rockwell c and 32.0 rockwell c
Hardness Rating
24.0 rockwell c and 32.0 rockwell c
Point Chamfer Angle
45.0 degrees
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel comp 1144
Material Specification
Sae assn standard single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416 federal specification single treatment response
Thread Series Designator
Unf
NSN
5305-00-330-5896
Part Number
34785-3
Description
Thumbscrew
CAGE
70210

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 34785-3 NSN 5305-00-330-5896

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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