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Flat Washer NSN 5310-00-685-8308

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 5310-00-685-8308 NSN: 5310-00-685-8308

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Features and Characteristics

Cross Sectional Shape
Rectangular
Hole Diameter
0.250 inches
Edge Shape
Round
Center Hole Shape
Round
Thickness
0.049 inches
Overall Diameter
0.562 inches
Material
Steel
Surface Treatment
Cadmium or phosphate or zinc
Surface Treatment Specification
Qq-p-416, type 2, cl 3 federal specification 1st treatment response or mil-p-16232 military specification 2nd treatment response or qq-z-325 federal specification 3rd treatment response or astm a153 assn standard 3rd treatment response
Nondefinitive Specification/std Data
A type and 1 grade and a class
FSC
5310 Nuts And Washers
NIIN
006858308
NSN
5310006858308

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
104-1S12M
Cage Code:
80063
Status:
A
MSDS:
Part Number:
FFW92
Cage Code:
81348
Status:
A
MSDS:
Part Number:
120385
Cage Code:
72582
Status:
A
MSDS:
Part Number:
00705
Cage Code:
1BZD4
Status:
A
MSDS:
Part Number:
125-10497-07
Cage Code:
04773
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 5310-00-685-8308
What are the manufacturers of nsn 5310006858308?
Does this nsn 5310006858308 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310006858308
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 5310006858308 contain any precious metals?
No precious metal content.
Does nsn 5310006858308 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310006858308?
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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