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Key Washer NSN 5310-00-639-3920

Item Description

A washer of nonresilient material usually having two parallel bearing surfaces. The outside and/or inside edges have one or more protuberances. The ends and/or edges may be prebent at any angle or the protuberances may be prebent at any angle to the bearing surfaces. The keys or lugs may be fitted into keyways in adjacent material or they may be bent over after application to hold or lock one or more items in place. Excludes thrust type washer.

NSN 5310-00-639-3920 NSN: 5310-00-639-3920

Features and Characteristics

Hole Diameter
Between 0.145 inches and 0.155 inches
Outside Diameter
Between 0.271 inches and 0.291 inches
External Prebent Key Length
Between 0.099 inches and 0.119 inches
External Tapered Key Width
Between 0.240 inches and 0.260 inches
External Prebent Key Width
Between 0.084 inches and 0.104 inches
Distance From Centerline To Inside Of Prebent Key
Between 0.161 inches and 0.181 inches
Overall Distance Including Keys
0.503 inches
Split Key Length
Between 0.131 inches and 0.151 inches
External Key Quantity
3
Material Thickness
Between 0.017 inches and 0.025 inches
Angle Between External Keys
60.0 degrees
Surface Finish
100.0 microinches all surfaces
Material
Steel comp 410 or steel comp 302
Material Specification
Ams 5504 assn standard 1st material response or ams 5516 assn standard 2nd material response
Surface Treatment
Oxide film
Style Designator
Key
FSC
5310 Nuts And Washers
NIIN
006393920
NSN
5310006393920

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
187417
Cage Code:
06848
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 5310-00-639-3920
What are the manufacturers of nsn 5310006393920?
Does this nsn 5310006393920 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310006393920
A washer of nonresilient material usually having two parallel bearing surfaces. the outside and/or inside edges have one or more protuberances. the ends and/or edges may be prebent at any angle or the protuberances may be prebent at any angle to the bearing surfaces. the keys or lugs may be fitted into keyways in adjacent material or they may be bent over after application to hold or lock one or more items in place. excludes thrust type washer.
Does nsn 5310006393920 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310006393920 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310006393920?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
01869
FIIG:
A022B0
App. Key:
A
Cond. Code:
1
Status:
A

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