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Concave Washer NSN 5310-00-139-8121

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 5310-00-139-8121 NSN: 5310-00-139-8121

Features and Characteristics

Surface Finish
63.0 microinches all surfaces
Material
Steel comp 303
Material Specification
Qq-s-764 federal specification single material response
Surface Treatment
Passivate
Surface Treatment Specification
H+4-169, fscm 82577 mfr ref single treatment response
FSC
5310 Nuts And Washers
NIIN
001398121
NSN
5310001398121

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
3278919
Cage Code:
82577
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 5310-00-139-8121
What are the manufacturers of nsn 5310001398121?
Does this nsn 5310001398121 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310001398121
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 5310001398121 contain any precious metals?
No precious metal content.
Does nsn 5310001398121 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310001398121?
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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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
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