Model: 921185M6

Extended Washer Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Washer Outside Diameter
0.760 inches
Counterbore Diameter
0.474 inches first end and 0.484 inches first end
Lubrication
Dry film lubricant
Overall Height
Between 0.458 inches and 0.478 inches
Nut Style
Double hexagon
Washer Thickness
Between 0.072 inches and 0.087 inches
Width Across Flats
Between 0.492 inches and 0.502 inches
Thread Series
Unjf
Thready Qty Per Inch (tpi)
24
Thread Size
0.375 inches
Material
Iron alloy 660
Material Specification
Ams 5737 assn standard single material response or ams 5732 assn standard single material response or ams 5525 assn standard single material response
Surface Treatment
Cadmium washer and chromate washer
Surface Treatment
Passivate nut
Surface Treatment Specification
Qq-p-35, ty2, cl2 federal specification single treatment response nut
Surface Treatment Specification
Qq-p-416, ty2, cl2 federal specification single treatment response washer
NSN
5310-01-352-7731
Part Number
921185M6
Description
Nut,self-locking,extended Washer
CAGE
56878

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 921185M6 NSN 5310-01-352-7731

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:
ESD:
MMAC:
BA
CRITL:
N

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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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