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Flat Washer NSN 5310-01-555-9058

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 5310-01-555-9058 NSN: 5310-01-555-9058

Features and Characteristics

Cross Sectional Shape
Rectangular
Hole Diameter
0.344 inches
Edge Shape
Round
Center Hole Shape
1 round
Thickness
Between 0.090 inches and 0.108 inches
Overall Diameter
0.688 inches
End Application
Route clearance - common nsn - used on legacy jerrv 6x6 and cougar 4x4 and 1 other weapon system
Part Name Assigned By Controlling Agency
Flat washer
Special Features
5/16" screw size; thickness min-max .090"-.108"; zinc and chromate finish; rockwell hardness c43-c49
Color
Yellow
Material
Steel
Surface Treatment
Zinc
FSC
5310 Nuts And Washers
NIIN
015559058
NSN
5310015559058

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
98025A030
Cage Code:
39428
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8710000090
  • NAICS: 336992
  • SITC: 89111
  • Description: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons
  • End Use (Code 50030):
    Military trucks, armored vehicles, etc.

Q & A

Frequently asked questions for NSN 5310-01-555-9058
What are the manufacturers of nsn 5310015559058?
Does this nsn 5310015559058 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310015559058
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 5310015559058 contain any precious metals?
No precious metal content.
Does nsn 5310015559058 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310015559058?
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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