Model: A51-167B

Thumbscrew

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.312 inches
Fastener Length
0.437 inches
Head Style
Knurled no. 1
Head Diameter
0.500 inches
Head Height
0.500 inches
Point Style
Flat
Thread Diameter
0.190 inches
Thready Qty Per Inch (tpi)
32
Material
Aluminum alloy 2011
Surface Treatment
Anodize
Thread Series Designator
Unf
NSN
5305-00-078-3666
Part Number
A51-167B
Description
Thumbscrew
CAGE
54880

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 A51-167B NSN 5305-00-078-3666

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:
013680
UFC:
05760
LTL:
70.0
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7616106000
  • SITC: 69440
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Threaded fasteners of aluminum

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