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Flat Washer NSN 5310-00-634-7503

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 5310-00-634-7503 NSN: 5310-00-634-7503

Features and Characteristics

Cross Sectional Shape
Rectangular
Hole Diameter
Between 0.079 inches and 0.085 inches
Edge Shape
Round
Center Hole Shape
Round
Thickness
Between 0.007 inches and 0.009 inches
Overall Diameter
0.170 inches
Surface Finish
40.0 microinches all surfaces
Material
Steel comp 302
Material Specification
Ams 5516 assn standard single material response
Surface Treatment
Passivate
FSC
5310 Nuts And Washers
NIIN
006347503
NSN
5310006347503

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
5710-131-7
Cage Code:
86928
Status:
A
MSDS:
Part Number:
326091
Cage Code:
06848
Status:
A
MSDS:
Part Number:
10121569
Cage Code:
A486G
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 5310-00-634-7503
What are the manufacturers of nsn 5310006347503?
Does this nsn 5310006347503 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310006347503
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 5310006347503 contain any precious metals?
No precious metal content.
Does nsn 5310006347503 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310006347503?
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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