Model: CB9541CR4E

Flat Washer

Properties:

Hole Diameter
Between 0.272 inches and 0.277 inches
Outside Diameter
0.525 inches
Overall Height
Between 0.083 inches and 0.087 inches
Recess Diameter
Between 0.380 inches and 0.390 inches
Recess Depth
Between 0.073 inches and 0.077 inches
End Application
F-22, raptor
Part Name Assigned By Controlling Agency
Washer, flat
Material
Steel comp 304 or iron alloy 660
Surface Treatment
Passivate
Surface Treatment Specification
Ams2700 federal standard single treatment response
Style Designator
Recessed
NSN
5310-01-560-6144
Part Number
CB9541CR4E
Description
Washer,flat
CAGE

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.

Part CB9541CR4E NSN 5310-01-560-6144

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
13393
FIIG:
A022B0
Concept No.:
1
App. Key:
B
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:
FR
CRITL:
X

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Schedule B and Export
  • Schedule B: 7318220000
  • SITC: 69422
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Washers other than lock washers, iron or steel

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