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Flat Washer NSN 5310-00-939-0604

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 5310-00-939-0604 NSN: 5310-00-939-0604

Features and Characteristics

Cross Sectional Shape
Rectangular
Hole Diameter
Between 0.319 inches and 0.329 inches
Edge Shape
Round
Center Hole Shape
1 round
Thickness
Between 0.057 inches and 0.069 inches
Overall Diameter
Between 0.515 inches and 0.525 inches
Heat Treatment
As fabricated
Material
Steel comp 1008 or steel comp 1009 or steel comp 1010 or steel comp 1015 or steel comp 1018 or steel comp 1020 or steel comp 1025
Material Specification
Qq-s-698 federal specification 1st material response and qq-s-698 federal specification 2nd material response and qq-s-698 federal specification 3rd material response and qq-s-698 federal specification 4th material response and qq-s-698 federal specification 5th material response and qq-s-698 federal specification 6th material response and mil-s-7952 military specification 7th material response
Surface Treatment
Cadmium and chromate
FSC
5310 Nuts And Washers
NIIN
009390604
NSN
5310009390604

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
LS5984S5H
Cage Code:
98897
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 5310-00-939-0604
What are the manufacturers of nsn 5310009390604?
Does this nsn 5310009390604 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310009390604
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 5310009390604 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310009390604 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310009390604?
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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