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Flat Washer NSN 5310-00-357-1938

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 5310-00-357-1938 NSN: 5310-00-357-1938

  Stock Availability

NSN 5310003571938 availability
(as of 01/27/2021).

  • NS: 347
  • NE: 3222

Note: Availability of this item may have changed since it was last checked. Request a quote for an updated price and availability quote.

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Features and Characteristics

Cross Sectional Shape
Rectangular
Hole Diameter
Between 0.193 inches and 0.213 inches
Edge Shape
Rectangular
Center Hole Shape
Round
Thickness
0.160 inches
Length
Between 0.430 inches and 0.490 inches
Width Across Flats
Between 0.430 inches and 0.490 inches
Special Features
0.06 in. Radius all corners, 0.160 in. Radius one side of one end
Material
Steel
Material Specification
Mil-s-5059 military specification 1st material response or mil-s-6721 military specification 2nd material response
Surface Treatment
Passivate
Specification Data
80205-nas1401 professional/industrial association standard
FSC
5310 Nuts And Washers
NIIN
003571938
NSN
5310003571938

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
NAS1401-3C5
Cage Code:
80205
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 5310-00-357-1938
What are the manufacturers of nsn 5310003571938?
Does this nsn 5310003571938 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310003571938
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 5310003571938 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310003571938 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310003571938?
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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