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Concave Washer NSN 5310-01-238-7749

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 5310-01-238-7749 NSN: 5310-01-238-7749

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Features and Characteristics

Hole Diameter
0.672 inches
Radius
0.620 inches
Outside Diameter
1.900 inches
Material Thickness
0.285 inches
Special Features
O.D.Flat on one side; heat treat to 160.000 to 180.000 psi per mil-h-6875
Material
Steel comp 4340
Material Specification
Mil-s-5000 military specification single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type ii, class 2 federal specification single treatment response
Style Designator
Concave
FSC
5310 Nuts And Washers
NIIN
012387749
NSN
5310012387749

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
856004-003
Cage Code:
76301
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 5310-01-238-7749
What are the manufacturers of nsn 5310012387749?
Does this nsn 5310012387749 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310012387749
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 5310012387749 contain any precious metals?
No precious metal content.
Does nsn 5310012387749 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310012387749?
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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