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Shouldered Washer NSN 5310-01-178-0212

Item Description

A washer, round in shape, and having a centrally located hole. One bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing sleeve; or spacer, sleeve. Excludes insulator, washer and thrust type washers.

NSN 5310-01-178-0212 NSN: 5310-01-178-0212

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Features and Characteristics

Hole Diameter
Between 5.750 inches and 5.755 inches
Shoulder Diameter
Between 6.218 inches and 6.220 inches
Outside Diameter
6.500 inches
Shoulder Height
0.250 inches
Material Thickness
0.125 inches
Surface Finish
63.0 microinches bottom
Special Features
Polyurethane coating on od only
Color
White
Material
Aluminum alloy 7075
Material Specification
Qq-a-225/9, t73 federal specification single material response
Surface Treatment Specification
Mil-a-8625 type 2 military specification 1st treatment response and mil-c-83286 color 17875 military specification 2nd treatment response
Style Designator
Shouldered
FSC
5310 Nuts And Washers
NIIN
011780212
NSN
5310011780212

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1881B295
Cage Code:
13002
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7616108000
  • NAICS: 332722
  • SITC: 69440
  • Description: Cotters, cotter-pins, washers and similar articles, of aluminum
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-01-178-0212
What are the manufacturers of nsn 5310011780212?
Does this nsn 5310011780212 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310011780212
A washer, round in shape, and having a centrally located hole. one bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. the thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. for items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing sleeve; or spacer, sleeve. excludes insulator, washer and thrust type washers.
Does nsn 5310011780212 contain any precious metals?
No precious metal content.
Does nsn 5310011780212 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310011780212?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
15934
FIIG:
A022B0
App. Key:
A
Cond. Code:
1
Status:
A

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