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Shouldered Washer NSN 5310-00-498-4999

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 5310-00-498-4999 NSN: 5310-00-498-4999

Features and Characteristics

Hole Diameter
Between 0.378 inches and 0.379 inches
Shoulder Diameter
0.469 inches
Outside Diameter
0.750 inches
Shoulder Height
Between 0.007 inches and 0.013 inches
Material Thickness
Between 0.049 inches and 0.052 inches
Material
Steel comp 303
Material Specification
Qq-s-764 federal specification single material response
Surface Treatment
Passivate
Surface Treatment Specification
Mil-s-5002 military specification single treatment response
Style Designator
Shouldered
FSC
5310 Nuts And Washers
NIIN
004984999
NSN
5310004984999

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
70643
Cage Code:
98889
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 5310-00-498-4999
What are the manufacturers of nsn 5310004984999?
Does this nsn 5310004984999 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310004984999
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 5310004984999 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310004984999 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310004984999?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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