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Flat Washer NSN 5310-00-776-4909

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 5310-00-776-4909 NSN: 5310-00-776-4909

Features and Characteristics

Cross Sectional Shape
Rectangular
Hole Diameter
Between 2.297 inches and 2.328 inches
Edge Shape
Round
Center Hole Shape
Round
Thickness
Between 0.375 inches and 0.391 inches
Overall Diameter
Between 3.984 inches and 4.016 inches
Material
Steel comp 1010 or steel comp 1015 or steel comp 1016 or steel comp 1018 or steel comp 1019 or steel comp 1020 or steel comp 1012 or steel comp 1017
Material Specification
Astm a108 assn standard 1st material response or astm a108 assn standard 2nd material response or astm a108 assn standard 3rd material response or astm a108 assn standard 4th material response or astm a108 assn standard 5th material response or astm a108 assn standard 6th material response or astm a576 assn standard 7th material response or astm a576 assn standard 8th material response
FSC
5310 Nuts And Washers
NIIN
007764909
NSN
5310007764909

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
7764909
Cage Code:
19207
Status:
A
MSDS:
Part Number:
KC7531
Cage Code:
56442
Status:
A
MSDS:
Part Number:
782
Cage Code:
74410
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 5310-00-776-4909
What are the manufacturers of nsn 5310007764909?
Does this nsn 5310007764909 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310007764909
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 5310007764909 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310007764909 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310007764909?
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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