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Shouldered Washer NSN 5310-01-205-5923

Item Description

A washer, round in shape, and having a centrally located hole. One bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. 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.

NSN 5310-01-205-5923 NSN: 5310-01-205-5923

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Features and Characteristics

Hole Diameter
Between 2.156 inches and 2.158 inches
Shoulder Diameter
Between 2.330 inches and 2.350 inches
Outside Diameter
Between 2.500 inches and 2.520 inches
Shoulder Height
Between 0.320 inches and 0.350 inches
Material Thickness
Between 0.080 inches and 0.100 inches
Hardness Rating
Between 28.0 rockwell c and 34.0 rockwell c
Surface Finish
63.0 microinches top
Material
Steel comp 4130 or steel comp 4140 or steel comp 4340
Material Specification
Astm a322 assn standard all material responses or ams 6414 assn standard 3rd material response or ams 6415 assn standard 3rd material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2, cl 1 federal specification single treatment response
Style Designator
Shouldered
FSC
5310 Nuts And Washers
NIIN
012055923
NSN
5310012055923

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
3860370-1
Cage Code:
99193
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7318220000
  • NAICS: 332722
  • SITC: 69422
  • Description: Washers other than lock washers, iron or steel
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-01-205-5923
What are the manufacturers of nsn 5310012055923?
Does this nsn 5310012055923 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310012055923
A washer, round in shape, and having a centrally located hole. one bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. 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.
Does nsn 5310012055923 contain any precious metals?
No precious metal content.
Does nsn 5310012055923 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310012055923?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
15934
FIIG:
A022B0
App. Key:
A
Cond. Code:
1
Status:
A

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