Model: 3M148-4

Plate Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Mounting Hole Diameter
0.098 mils and 0.103 centimeters
Nut Style
Plate
Nut Length
1.300 inches
Nut Height
0.351 inches
Plate Thickness
0.031 inches
Plate Width
0.516 inches
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
1200.0 degrees fahrenheit
Thread Series
Unf
Features Provided
Floating nut
Thready Qty Per Inch (tpi)
28
Thread Size
0.250 inches
Material
Steel comp 321 or steel comp 303f
Material Specification
Ams 5510 assn standard 1st material response or ams 5642 assn standard 2nd material response
Precious Material And Location
Nut, surface treatment silver
Precious Material
Silver
Surface Treatment
Silver nut
Surface Treatment
Passivate base
NSN
5310-00-078-8610
Part Number
3M148-4
Description
Nut,self-locking,plate
CAGE
76301

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 3M148-4 NSN 5310-00-078-8610

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:
S
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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