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Flat Washer NSN 5310-00-812-3125

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 5310-00-812-3125 NSN: 5310-00-812-3125

Features and Characteristics

Cross Sectional Shape
Rectangular
Hole Diameter
Between 0.140 inches and 0.150 inches
Edge Shape
Round
Center Hole Shape
1 round
Thickness
0.025 inches
Overall Diameter
Between 0.240 inches and 0.245 inches
Material
Aluminum alloy 6061
Material Specification
Qq-a-250/11 t6 cond t federal specification single material response
Surface Treatment
Anodize or chromate
Surface Treatment Specification
Mil-a-8625 military specification 1st treatment response or mil-c-5541 military specification 2nd treatment response
FSC
5310 Nuts And Washers
NIIN
008123125
NSN
5310008123125

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
S8157C82-025A
Cage Code:
99193
Status:
A
MSDS:
Part Number:
S8157 REV VC
Cage Code:
99193
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7616108000
  • NAICS: 332722
  • SITC: 69440
  • Description: Cotters, cotter-pins, washers and similar articles, of aluminum
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-00-812-3125
What are the manufacturers of nsn 5310008123125?
Does this nsn 5310008123125 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310008123125
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 5310008123125 contain any precious metals?
No precious metal content.
Does nsn 5310008123125 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310008123125?
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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