Model: 950-3

Concave Washer

Special Features:

Rockwell hardness pertains to qq-s-698

Properties:

End Application
Ch-53g
Hardness Rating
Between 70.0 rockwell b and 85.0 rockwell b
Surface Finish
63.0 microinches all surfaces
Material
Steel comp 1018 or steel comp 1019 or steel comp 1020 or steel comp 1021 or steel comp 1022 or steel comp 1023 or steel comp 1524 or steel comp 1025 or steel comp 12l14
Material Specification
Mil-s-7097 military specification single material response or qq-s-698 federal specification single material response or astm a108-81, condition: cold drawn assn standard single material response
Surface Treatment
Cadmium or zinc
Surface Treatment Specification
Qq-p-416, type 1, class 2 federal specification single treatment response or qq-z-325, type 1, class 2 federal specification single treatment response
Style Designator
Concave
NSN
5310-01-471-5320
Part Number
950-3
Description
Washer,concave
CAGE
80049

A washer which is round with a centrally located hole. One bearing surface is smooth, flat, and unbroken, the other bearing surface is smooth, unbroken, and is recessed to form a curved or spherical contour. See also washer (1), convex. Excludes washer (1), recessed and bearing, washer, thrust.

Part 950-3 NSN 5310-01-471-5320

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15930
FIIG:
A022B0
Concept No.:
1
App. Key:
A
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: 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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