Model: T66S428SK1

Plate Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Counterbore Diameter
0.254 inches nut
Lubrication
Dry film lubricant
Overall Height
Between 0.440 inches and 0.460 inches
Mounting Hole Diameter
Between 0.098 inches and 0.103 inches
Nut Style
Plate
Nut Length
1.250 inches
Nut Height
0.250 inches
Plate Thickness
0.031 inches
Plate Width
0.516 inches
Nut Counterbore Depth
0.071 inches nut
Nut Mounting Provision
Straight holes
Mounting Hole Arrangement Style
2 holes
Distance From Aperture Center To Mounting Hole Center
Between 0.495 inches and 0.505 inches
Center To Center Distance Between Mounting Holes Along Length
Between 0.310 inches and 0.314 inches
Tempurature Rating
550.0 degrees fahrenheit
Thread Series
Unf
Features Provided
Floating nut
Thready Qty Per Inch (tpi)
28
Hardness Rating
Between 36.0 rockwell c and 40.0 rockwell c
Thread Size
0.250 inches
Material
Steel comp 1010 cap
Material
Steel comp 1030 shell
Material
Steel comp 1065 nut
Material Specification
Sae federal specification single material response cap
Material Specification
Sae federal specification single material response nut
Surface Treatment
Cadmium cap
Surface Treatment
Cadmium nut
Surface Treatment
Cadmium shell
Surface Treatment Specification
Qq-p-416, type 2, class 3 federal specification single treatment response cap
Surface Treatment Specification
Qq-p-416, type 2, class 3 federal specification single treatment response nut
Surface Treatment Specification
Qq-p-416, type 1, class 3 federal specification single treatment response shell
NSN
5310-00-235-0187
Part Number
T66S428SK1
Description
Nut,self-locking,plate
CAGE
71087

A nut with a flanged base of varied shapes which may be plain or mounted by rivets, bolts, welding or integral prongs. An integral feature is incorporated for locking on the threads of a mating member.

Part T66S428SK1 NSN 5310-00-235-0187

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05280
FIIG:
A021A0
Concept No.:
1
App. Key:
BZ
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

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Schedule B and Export
  • Schedule B: 7318160000
  • SITC: 69421
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Nuts of iron or steel

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