Model: 990FR12-524

Hexagon Self-locking Nut

Properties:

Thread Class
2a
Thread Direction
Right-hand
Locking Feature
Free-running all metal design
Nut Style
Hexagon
Nut Height
0.469 inches
Width Across Flats
0.500 inches
Tempurature Rating
1200.0 degrees fahrenheit
Thread Series
Unf
Thready Qty Per Inch (tpi)
24
Thread Size
0.312 inches
Material
Steel uns s34720 or steel uns s34723
Material Specification
Ams 5642 assn standard all material responses
Precious Material
Silver
Surface Treatment
Silver
NSN
5310-00-208-5867
Part Number
990FR12-524
Description
Nut,self-locking,hexagon
CAGE
56878

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes nut (1), self-locking, cap.

Part 990FR12-524 NSN 5310-00-208-5867

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05277
FIIG:
A021A0
Concept No.:
1
App. Key:
BK
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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