Model: A12490-55

Plate Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Mounting Hole Diameter
0.066 inches
Nut Style
Plate
Nut Length
0.471 inches
Distance From Base To Center Of Aperture
0.146 inches
Nut Height
0.155 inches
Plate Thickness
0.025 inches
Plate Width
0.266 inches
Nut Mounting Provision
Straight holes
Mounting Hole Arrangement Style
2 holes
Distance From Aperture Center To Mounting Hole Center
0.146 inches
Center To Center Distance Between Mounting Holes Along Length
0.140 inches
Tempurature Rating
550.0 degrees fahrenheit
Thread Series
Unc
Features Provided
Floating nut
Thready Qty Per Inch (tpi)
32
Thread Size
0.138 inches
Material
Steel
Surface Treatment
Cadmium
NSN
5310-00-687-7715
Part Number
A12490-55
Description
Nut,self-locking,plate
CAGE
95542

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 A12490-55 NSN 5310-00-687-7715

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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
50.0
WCC:
573
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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