Model: RM55LH9638-7

Extended Washer Self-locking Nut

Special Features:

Matl steel comp uns k74015

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all nonmetallic design
Washer Outside Diameter
0.725 inches
Lubrication
Dry film lubricant
Overall Height
0.470 inches
Nut Style
Double hexagon
Washer Thickness
0.044 inches
Width Across Flats
Between 0.553 inches and 0.564 inches
Tempurature Rating
450.0 degrees fahrenheit
Thread Series
Unjf
Thready Qty Per Inch (tpi)
20
Hardness Rating
49.0 rockwell c
Thread Size
0.437 inches
Material
Steel
Material Specification
Ams6487 assn standard single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type 2, class 2 federal specification single treatment response
Purchase Description Identification
56878-sd.302.69678
NSN
5310-01-193-1499
Part Number
RM55LH9638-7
Description
Nut,self-locking,extended Washer
CAGE
72962

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 RM55LH9638-7 NSN 5310-01-193-1499

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:
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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