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Shouldered Washer NSN 5310-00-438-8990

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 5310-00-438-8990 NSN: 5310-00-438-8990

  Stock Availability

NSN 5310004388990 availability
(as of 09/08/2022).

  • NE: 6239
  • NS: 452

Note: Availability of this item may have changed since it was last checked. Request a quote for an updated price and availability quote.

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  •   100% Product Inspections
  •   7 Year Record Retention
  •   On Time Delivery
  •   HAZMAT Certified
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Features and Characteristics

Hole Diameter
Between 0.213 inches and 0.223 inches
Shoulder Diameter
Between 0.171 inches and 0.181 inches
Outside Diameter
Between 0.455 inches and 0.465 inches
Overall Height
Between 0.024 inches and 0.034 inches
Color
Bronze
Material Specification
Ms2030 military specification single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type2, class2 federal specification single treatment response
Style Designator
Shouldered
FSC
5310 Nuts And Washers
NIIN
004388990
NSN
5310004388990

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
MS20230WBP20
Cage Code:
96906
Status:
A
MSDS:

Q & A

Frequently asked questions for NSN 5310-00-438-8990
What are the manufacturers of nsn 5310004388990?
Does this nsn 5310004388990 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310004388990
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 5310004388990 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310004388990 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310004388990?
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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