Model: 21FA-1224

Hexagon Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Nut Height
0.290 inches
Width Across Flats
Between 0.430 inches and 0.439 inches
Thread Series
Unjc
Thready Qty Per Inch (tpi)
24
Thread Size
0.216 inches
Material
Steel
Surface Treatment
Cadmium
NSN
5310-01-332-4404
Part Number
21FA-1224
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 21FA-1224 NSN 5310-01-332-4404

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:
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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