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Flat Washer NSN 5310-00-227-1921

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 5310-00-227-1921 NSN: 5310-00-227-1921

Features and Characteristics

Cross Sectional Shape
Rectangular
Hole Diameter
Between 0.500 inches and 0.515 inches
Edge Shape
Round
Center Hole Shape
Round
Thickness
Between 0.021 inches and 0.041 inches
Overall Diameter
Between 0.865 inches and 0.885 inches
Material
Steel
FSC
5310 Nuts And Washers
NIIN
002271921
NSN
5310002271921

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1829V386
Cage Code:
78500
Status:
A
MSDS:
Part Number:
106000R1
Cage Code:
29510
Status:
A
MSDS:
Part Number:
444SP32
Cage Code:
89619
Status:
A
MSDS:
Part Number:
8328008
Cage Code:
19207
Status:
A
MSDS:
Part Number:
397332
Cage Code:
65282
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 5310-00-227-1921
What are the manufacturers of nsn 5310002271921?
Does this nsn 5310002271921 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310002271921
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 5310002271921 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310002271921 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310002271921?
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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