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Shouldered And Recessed Washer NSN 5310-01-121-8529

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 5310-01-121-8529 NSN: 5310-01-121-8529

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Features and Characteristics

Hole Diameter
Between 2.9700 inches and 2.9750 inches
Shoulder Diameter
Between 3.1900 inches and 3.1915 inches
Outside Diameter
Between 3.504 inches and 3.506 inches
Recess Diameter
Between 3.130 inches and 3.135 inches
Shoulder Height
0.540 inches
Material Thickness
Between 0.089 inches and 0.090 inches
Recess Angle
Between 88.0 degrees and 92.0 degrees
Surface Finish
63.0 microinches top
Material
Copper alloy 172
Material Specification
Qq-c-530, temper at federal specification single material response
Style Designator
Shouldered and recessed
FSC
5310 Nuts And Washers
NIIN
011218529
NSN
5310011218529

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
74A410551-2003
Cage Code:
76301
Status:
A
MSDS:
Part Number:
10109389
Cage Code:
A486G
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 5310-01-121-8529
What are the manufacturers of nsn 5310011218529?
Does this nsn 5310011218529 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310011218529
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 5310011218529 contain any precious metals?
No precious metal content.
Does nsn 5310011218529 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310011218529?
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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