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Flat Washer NSN 5310-00-849-7172

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 5310-00-849-7172 NSN: 5310-00-849-7172

Features and Characteristics

Cross Sectional Shape
Rectangular
Hole Diameter
0.140 inches
Edge Shape
Round
Center Hole Shape
1 round
Thickness
0.018 inches
Overall Diameter
0.250 inches
Part Name Assigned By Controlling Agency
Navy special project
Material
Copper alloy
Material Specification
Qq-b-626 federal specification single material response
Surface Treatment
Tin
Surface Treatment Specification
Mil-t-10727 type 1 military specification single treatment response
FSC
5310 Nuts And Washers
NIIN
008497172
NSN
5310008497172

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
FF-W-92B TYPE A CLASS E
Cage Code:
81348
Status:
A
MSDS:
Part Number:
97210ADX
Cage Code:
1VN02
Status:
A
MSDS:
Part Number:
97210
Cage Code:
73734
Status:
A
MSDS:
Part Number:
840675-1
Cage Code:
2H631
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7415210000
  • NAICS: 332722
  • SITC: 69432
  • Description: Copper washers including spring washers not threaded
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-00-849-7172
What are the manufacturers of nsn 5310008497172?
Does this nsn 5310008497172 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310008497172
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 5310008497172 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310008497172 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310008497172?
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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