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Shouldered And Recessed Washer NSN 5310-00-285-8481

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 5310-00-285-8481 NSN: 5310-00-285-8481

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Features and Characteristics

Hole Diameter
Between 3.150 inches and 3.152 inches
Shoulder Diameter
Between 3.515 inches and 3.525 inches
Outside Diameter
Between 3.868 inches and 3.873 inches
Shoulder Height
Between 0.201 inches and 0.202 inches
Material Thickness
Between 0.118 inches and 0.121 inches
Hardness Rating
Between 26.0 rockwell c and 32.0 rockwell c
Recess Angle
45.0 degrees
Surface Finish
8.0 microinches shoulder face
Material
Steel comp 8740
Material Specification
Ams 6322 assn standard single material response
Style Designator
Shouldered and recessed
FSC
5310 Nuts And Washers
NIIN
002858481
NSN
5310002858481

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
221289N3
Cage Code:
0AHP5
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 5310-00-285-8481
What are the manufacturers of nsn 5310002858481?
Does this nsn 5310002858481 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310002858481
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 5310002858481 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310002858481 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310002858481?
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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