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Shouldered Washer NSN 5310-00-445-8399

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 5310-00-445-8399 NSN: 5310-00-445-8399

Features and Characteristics

Hole Diameter
Between 1.250 inches and 1.251 inches
Shoulder Diameter
Between 1.5015 inches and 1.5025 inches
Outside Diameter
1.750 inches
Shoulder Height
Between 0.270 inches and 0.280 inches
Material Thickness
Between 0.076 inches and 0.077 inches
Material
Steel comp e4340
Material Specification
Mil-s-5000 cond f2 military specification single material response
Surface Treatment
Cadmium
Style Designator
Shouldered
FSC
5310 Nuts And Washers
NIIN
004458399
NSN
5310004458399

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1560AC1-042
Cage Code:
81996
Status:
A
MSDS:
Part Number:
C4WM1060-1
Cage Code:
71867
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 5310-00-445-8399
What are the manufacturers of nsn 5310004458399?
Does this nsn 5310004458399 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310004458399
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 5310004458399 contain any precious metals?
No precious metal content.
Does nsn 5310004458399 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310004458399?
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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