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Shouldered And Recessed Washer NSN 5310-01-169-3188

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 5310-01-169-3188 NSN: 5310-01-169-3188

  Stock Availability

NSN 5310011693188 availability
(as of 01/24/2024).

  • NE: 47
  • NS: 3

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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Features and Characteristics

Hole Diameter
Between 0.7023 inches and 0.7033 inches
Shoulder Diameter
Between 1.0660 inches and 1.0665 inches
Outside Diameter
1.188 inches
Recess Diameter
0.060 inches
Shoulder Height
Between 0.195 inches and 0.200 inches
Material Thickness
Between 0.050 inches and 0.055 inches
Hardness Rating
Between 28.0 rockwell c and 32.0 rockwell c
Recess Angle
90.0 degrees
Surface Finish
63.0 microinches shoulder face
Material
Steel comp e4340
Material Specification
Mil-s-5000, cond e4 military specification single material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2 federal specification single treatment response
Style Designator
Shouldered and recessed both sides
FSC
5310 Nuts And Washers
NIIN
011693188
NSN
5310011693188

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
70209-26007-131
Cage Code:
78286
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 5310-01-169-3188
What are the manufacturers of nsn 5310011693188?
Does this nsn 5310011693188 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310011693188
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 5310011693188 contain any precious metals?
No precious metal content.
Does nsn 5310011693188 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310011693188?
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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