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Flat Washer NSN 5310-00-471-0878

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 5310-00-471-0878 NSN: 5310-00-471-0878

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Features and Characteristics

Cross Sectional Shape
Rectangular
Hole Diameter
Between 0.130 inches and 0.135 inches
Edge Shape
Round
Center Hole Shape
Round
Thickness
Between 0.027 inches and 0.036 inches
Overall Diameter
Between 0.245 inches and 0.270 inches
Hardness Rating
Between 70.0 rockwell b and 100.0 rockwell b
Material
Steel comp 302 or steel comp 304
Material Specification
Ams 5515 assn standard 1st material response and ams 5513 assn standard 2nd material response
FSC
5310 Nuts And Washers
NIIN
004710878
NSN
5310004710878

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
547913
Cage Code:
73030
Status:
A
MSDS:
Part Number:
328363
Cage Code:
77445
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 5310-00-471-0878
What are the manufacturers of nsn 5310004710878?
Does this nsn 5310004710878 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310004710878
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 5310004710878 contain any precious metals?
No precious metal content.
Does nsn 5310004710878 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310004710878?
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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