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Flat Washer NSN 5310-01-499-4511

Item Description

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.

NSN 5310-01-499-4511 NSN: 5310-01-499-4511

Features and Characteristics

Cross Sectional Shape
Rectangular
Hole Diameter
0.190 inches
Edge Shape
Round
Center Hole Shape
Round
Thickness
Between 0.040 inches and 0.070 inches
Overall Diameter
0.380 inches
Part Name Assigned By Controlling Agency
Washer flat
Material
Steel comp 301 or steel comp 302 or steel comp 303 or steel comp 304
Surface Treatment
Passivate
FSC
5310 Nuts And Washers
NIIN
014994511
NSN
5310014994511

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
98019A325
Cage Code:
2V507
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 5310-01-499-4511
What are the manufacturers of nsn 5310014994511?
Does this nsn 5310014994511 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310014994511
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. the hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). the thickness cannot exceed 25 percent of the largest outside dimension. when the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. the maximum tolerance is applied to dimensions and used as a determining factor. items with separable lamination use shim. for items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. excludes disk, valve, graphite impregnated and lubricated items.
Does nsn 5310014994511 contain any precious metals?
No precious metal content.
Does nsn 5310014994511 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310014994511?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
13393
FIIG:
A022B0
App. Key:
B
Cond. Code:
1
Status:
A

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