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Concave Washer NSN 5310-00-331-2660

Item Description

A washer which is round with a centrally located hole. One bearing surface is smooth, flat, and unbroken, the other bearing surface is smooth, unbroken, and is recessed to form a curved or spherical contour. See also washer (1), convex. Excludes washer (1), recessed and bearing, washer, thrust.

NSN 5310-00-331-2660 NSN: 5310-00-331-2660

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Features and Characteristics

Hole Diameter
4.646 inches
Radius
4.921 inches
Outside Diameter
6.142 inches
Recess Depth
0.062 inches
Material Thickness
0.512 inches
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel
Style Designator
Concave
FSC
5310 Nuts And Washers
NIIN
003312660
NSN
5310003312660

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
8136751
Cage Code:
18876
Status:
A
MSDS:
Part Number:
720U
Cage Code:
52676
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 5310-00-331-2660
What are the manufacturers of nsn 5310003312660?
Does this nsn 5310003312660 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310003312660
A washer which is round with a centrally located hole. one bearing surface is smooth, flat, and unbroken, the other bearing surface is smooth, unbroken, and is recessed to form a curved or spherical contour. see also washer (1), convex. excludes washer (1), recessed and bearing, washer, thrust.
Does nsn 5310003312660 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310003312660 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310003312660?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
15930
FIIG:
A022B0
App. Key:
A
Cond. Code:
1
Status:
A

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