Model: BACN10HR4

Extended Washer Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Washer Outside Diameter
0.438 inches
Counterbore Diameter
0.250 inches first end and 0.280 inches first end
Overall Height
Between 0.280 inches and 0.310 inches
Nut Style
Double hexagon
Washer Thickness
0.020 inches
Width Across Flats
0.347 inches
Thread Series
Unjf
Thready Qty Per Inch (tpi)
28
Part Name Assigned By Controlling Agency
Nut, self locking, 12 point, 220 ksi tensile, high reliability, 450 f and 900 f; boeing part standard
Material
Steel
Surface Treatment
Cadmium
NSN
5310-01-557-2769
Part Number
BACN10HR4
Description
Nut,self-locking,extended Washer
CAGE
77272

A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part BACN10HR4 NSN 5310-01-557-2769

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29729
FIIG:
A021A0
Concept No.:
1
App. Key:
BS
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:
A
ESD:
A
ESD:
A
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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