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Flat Washer NSN 5310-00-282-6903

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 5310-00-282-6903 NSN: 5310-00-282-6903

Features and Characteristics

Cross Sectional Shape
Rectangular
Hole Diameter
Between 1.255 inches and 1.275 inches
Edge Shape
Round
Center Hole Shape
Round
Thickness
Between 0.080 inches and 0.100 inches
Overall Diameter
Between 1.995 inches and 2.020 inches
Material
Steel
Material Specification
Mil-s-7952 military specification single material response or qq-s-698 federal specification single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type 2, cl 3 federal specification single treatment response
FSC
5310 Nuts And Washers
NIIN
002826903
NSN
5310002826903

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
5497639-1
Cage Code:
D9182
Status:
A
MSDS:
Part Number:
AN960-2016
Cage Code:
88044
Status:
A
MSDS:
Part Number:
8168214
Cage Code:
18876
Status:
A
MSDS:
Part Number:
NAS1149F2090P
Cage Code:
88044
Status:
A
MSDS:
Part Number:
5310002826903
Cage Code:
SCY13
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 5310-00-282-6903
What are the manufacturers of nsn 5310002826903?
Does this nsn 5310002826903 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310002826903
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 5310002826903 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310002826903 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310002826903?
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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  •   Quality Inspected Parts
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