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Flat Washer NSN 5310-00-194-0634

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 5310-00-194-0634 NSN: 5310-00-194-0634

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Features and Characteristics

Cross Sectional Shape
Rectangular
Hole Diameter
Between 0.139 inches and 0.159 inches
Edge Shape
Round
Center Hole Shape
Round
Thickness
Between 0.022 inches and 0.042 inches
Overall Diameter
Between 0.370 inches and 0.395 inches
Material
Copper alloy 642
Material Specification
Qq-w-321 federal specification single material response
Surface Treatment
Tin or silver
Surface Treatment Specification
Mil-t-10727 military specification 1st treatment response or qq-s-365, grade b federal specification 2nd treatment response
FSC
5310 Nuts And Washers
NIIN
001940634
NSN
5310001940634

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
AN961-6
Cage Code:
88044
Status:
A
MSDS:
Part Number:
S124682-1-4-1
Cage Code:
18355
Status:
A
MSDS:
Part Number:
806182
Cage Code:
18876
Status:
A
MSDS:
Part Number:
8168222
Cage Code:
18876
Status:
A
MSDS:
Part Number:
4197412-003
Cage Code:
05869
Status:
A
MSDS:
Part Number:
5310001940634
Cage Code:
SCY13
Status:
A
MSDS:
Part Number:
541021
Cage Code:
F0016
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7415210000
  • NAICS: 332722
  • SITC: 69432
  • Description: Copper washers including spring washers not threaded
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-00-194-0634
What are the manufacturers of nsn 5310001940634?
Does this nsn 5310001940634 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310001940634
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 5310001940634 contain any precious metals?
No precious metal content.
Does nsn 5310001940634 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310001940634?
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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