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Flat Washer NSN 5310-00-000-0079

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 5310-00-000-0079 NSN: 5310-00-000-0079

  Stock Availability

NSN 5310000000079 availability
(as of 11/19/2024).

  • NE: 1991
  • NS: 387

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 0.396 inches and 0.416 inches
Edge Shape
Round
Center Hole Shape
Round
Thickness
Between 0.151 inches and 0.165 inches
Overall Diameter
Between 0.690 inches and 0.710 inches
Hardness Rating
Between 33.0 rockwell c and 38.0 rockwell c
Part Name Assigned By Controlling Agency
Washer, flat metal, round hardened
Material
Steel comp 4130 or steel comp 4140 or steel comp 8640 or steel comp 8740
FSC
5310 Nuts And Washers
NIIN
000000079
NSN
5310000000079

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
10910174-33
Cage Code:
19200
Status:
A
MSDS:
Part Number:
5310000000079
Cage Code:
SCY13
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 5310-00-000-0079
What are the manufacturers of nsn 5310000000079?
Does this nsn 5310000000079 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310000000079
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 5310000000079 contain any precious metals?
No precious metal content.
Does nsn 5310000000079 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310000000079?
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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