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Shouldered And Recessed Washer NSN 5310-00-999-6478

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 5310-00-999-6478 NSN: 5310-00-999-6478

Features and Characteristics

Hole Diameter
Between 0.3125 inches and 0.3145 inches
Shoulder Diameter
Between 0.667 inches and 0.672 inches
Outside Diameter
Between 0.820 inches and 0.830 inches
Recess Diameter
Between 0.365 inches and 0.375 inches
Shoulder Height
0.055 inches
Material Thickness
0.050 inches
Hardness Rating
Between 75.0 rockwell superficial 15-n and 79.5 rockwell superficial 15-n
Recess Angle
Between 88.0 degrees and 92.0 degrees
Material
Steel comp 410
Material Specification
Qq-s-763 federal specification single material response
Surface Treatment
Passivate
Style Designator
Shouldered and recessed
FSC
5310 Nuts And Washers
NIIN
009996478
NSN
5310009996478

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
591709
Cage Code:
73030
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 5310-00-999-6478
What are the manufacturers of nsn 5310009996478?
Does this nsn 5310009996478 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310009996478
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 5310009996478 contain any precious metals?
No precious metal content.
Does nsn 5310009996478 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310009996478?
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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