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Shouldered Washer NSN 5310-00-783-1227

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 5310-00-783-1227 NSN: 5310-00-783-1227

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Features and Characteristics

Hole Diameter
Between 0.251 inches and 0.255 inches
Shoulder Diameter
Between 0.335 inches and 0.345 inches
Outside Diameter
Between 0.595 inches and 0.598 inches
Shoulder Height
Between 0.018 inches and 0.025 inches
Material Thickness
Between 0.017 inches and 0.020 inches
Heat Treatment
Cold drawn or cold forged
Material
Steel comp 1144
Material Specification
Ems630, fscm 70210 mfr ref single material response
Surface Treatment
Phosphate and nickel
Surface Treatment Specification
Mil-c-26074, cl 1 military specification single treatment response
Style Designator
Shouldered
FSC
5310 Nuts And Washers
NIIN
007831227
NSN
5310007831227

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
534281
Cage Code:
64547
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 5310-00-783-1227
What are the manufacturers of nsn 5310007831227?
Does this nsn 5310007831227 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310007831227
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 5310007831227 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310007831227 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310007831227?
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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