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Shouldered And Recessed Washer NSN 5310-00-901-9830

Item Description

A washer, round in shape, having a centrally located hole. One bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. Either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. 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 5310-00-901-9830 NSN: 5310-00-901-9830

Features and Characteristics

Hole Diameter
Between 2.678 inches and 2.698 inches
Shoulder Diameter
Between 2.774 inches and 2.777 inches
Outside Diameter
Between 3.618 inches and 3.623 inches
Shoulder Height
Between 0.031 inches and 0.036 inches
Material Thickness
Between 0.073 inches and 0.083 inches
Hardness Rating
Between 44.0 rockwell c and 46.0 rockwell c
Recess Angle
90.0 degrees
Surface Finish
64.0 microinches all surfaces
Heat Treatment
Normalized
Material
Steel comp e4340
Material Specification
Mil-s-5000 military specification single material response
Style Designator
Shouldered and recessed
FSC
5310 Nuts And Washers
NIIN
009019830
NSN
5310009019830

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
B2769
Cage Code:
17472
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 5310-00-901-9830
What are the manufacturers of nsn 5310009019830?
Does this nsn 5310009019830 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310009019830
A washer, round in shape, having a centrally located hole. one bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. 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 5310009019830 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310009019830 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310009019830?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
15935
FIIG:
A022B0
App. Key:
A
Cond. Code:
1
Status:
A

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