Model: 591709

Shouldered And Recessed Washer

Properties:

Hole Diameter
Between 0.3125 inches and 0.3145 inches
Shoulder Diameter
Between 0.667 inches and 0.672 inches
Outside Diameter
Between 0.820 inches and 0.830 inches
Recess Diameter
Between 0.365 inches and 0.375 inches
Shoulder Height
0.055 inches
Material Thickness
0.050 inches
Hardness Rating
Between 75.0 rockwell superficial 15-n and 79.5 rockwell superficial 15-n
Recess Angle
Between 88.0 degrees and 92.0 degrees
Material
Steel comp 410
Material Specification
Qq-s-763 federal specification single material response
Surface Treatment
Passivate
Style Designator
Shouldered and recessed
NSN
5310-00-999-6478
Part Number
591709
Description
Washer,shouldered And Recessed
CAGE
73030

A washer, round in shape, having a centrally located hole. One bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. Either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing, sleeve; or spacer, sleeve. Excludes insulator, washer and thrust type washers.

Part 591709 NSN 5310-00-999-6478

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15935
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:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 7616108000
  • SITC: 69440
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Cotters, cotter-pins, washers and similar articles, of aluminum

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