Model: HK 251

Knob

Properties:

Inside Diameter
2.500 inches
Shank Length
1.000 inches
Shank Diameter
1.125 inches
Shank Style
Straight
Width
2.500 inches
Gripping Surface Condition
Smooth
Length
2.500 inches
Attachment Method
Screw on
Overall Thickness
0.500 inches
Material Transparency
Opaque
Thready Qty Per Inch (tpi)
13 receptacle
Thread Size
0.500 inches receptacle
Material
Iron cast
Style Designator
Cross
Thread Series Designator
Unc screw hole
NSN
5355-01-462-8440
Part Number
HK 251
Description
Knob
CAGE

An item designed to transmit manual, rotary or linear motion to other devices. May include detachable or nondetachable stud (shaft), pointer, or skirt. It may have reference markings in the form of dots, arrows, hairlines, and/or symbols which may be used in conjunction with a calibrated panel, vernier indicator, and the like to indicate the position or motion of items. For items having spokes or simulated spokes radiating from near the center to near the outside rim of the item and relatively thin round disk-shaped items 3 inches (76.2 mm) in diameter or over, see handwheel. For items calibrated in units or series of divisions to denote relative positioning of devices see dial, control. Excludes doorknob; and handle (as modified).

Part HK 251 NSN 5355-01-462-8440

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
03263
FIIG:
A530M0
Concept No.:
App. Key:
Cond. Code:
2
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:
BA
CRITL:
X

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Schedule B and Export
  • Schedule B: 8531900002
  • SITC: 77885
  • End Use: Electric apparatus
  • NAICS: 335999
  • USDA: 1

Freight Class: Parts of electric sound or visual signaling apparatus other than printed circuit assemblies, nesoi

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