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Shouldered And Recessed Washer NSN 5310-01-197-4492

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 5310-01-197-4492 NSN: 5310-01-197-4492

Features and Characteristics

Hole Diameter
Between 3.188 inches and 3.190 inches
Shoulder Diameter
3.625 inches
Outside Diameter
4.938 inches
Recess Diameter
4.250 inches
Shoulder Height
Between 0.306 inches and 0.308 inches
Material Thickness
0.375 inches
Recess Angle
90.0 degrees
Material
Steel
Style Designator
Shouldered and recessed
FSC
5310 Nuts And Washers
NIIN
011974492
NSN
5310011974492

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
102-6818-1
Cage Code:
61361
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 5310-01-197-4492
What are the manufacturers of nsn 5310011974492?
Does this nsn 5310011974492 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310011974492
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 5310011974492 contain any precious metals?
No precious metal content.
Does nsn 5310011974492 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310011974492?
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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