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Shouldered Washer NSN 5310-01-421-2020

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 5310-01-421-2020 NSN: 5310-01-421-2020

Features and Characteristics

Hole Diameter
Between 0.510 inches and 0.520 inches
Shoulder Diameter
Between 0.615 inches and 0.635 inches
Outside Diameter
Between 0.740 inches and 0.760 inches
Overall Height
Between 0.435 inches and 0.445 inches
Shoulder Height
Between 0.340 inches and 0.350 inches
Material
Steel comp 303
Material Specification
Astm a581 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Style Designator
Shouldered
FSC
5310 Nuts And Washers
NIIN
014212020
NSN
5310014212020

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
A3210003
Cage Code:
80063
Status:
A
MSDS:
Part Number:
15668-0.095-0.345-SS-1
Cage Code:
51506
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 5310-01-421-2020
What are the manufacturers of nsn 5310014212020?
Does this nsn 5310014212020 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310014212020
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 5310014212020 contain any precious metals?
No precious metal content.
Does nsn 5310014212020 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310014212020?
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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