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Shouldered Washer NSN 5310-00-520-8959

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 5310-00-520-8959 NSN: 5310-00-520-8959

Features and Characteristics

Hole Diameter
Between 3.7500 inches and 3.7512 inches
Shoulder Diameter
Between 3.9398 inches and 3.9410 inches
Outside Diameter
4.250 inches
Shoulder Height
0.438 inches
Material Thickness
Between 0.060 inches and 0.065 inches
Surface Finish
100.0 microinches all surfaces
Material
Copper
Material Specification
Qq-c-390 federal specification single material response
Style Designator
Shouldered
FSC
5310 Nuts And Washers
NIIN
005208959
NSN
5310005208959

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
175187-3
Cage Code:
98897
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7415210000
  • NAICS: 332722
  • SITC: 69432
  • Description: Copper washers including spring washers not threaded
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-00-520-8959
What are the manufacturers of nsn 5310005208959?
Does this nsn 5310005208959 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310005208959
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 5310005208959 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310005208959 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310005208959?
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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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
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