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Shouldered And Recessed Washer NSN 5310-00-409-9031

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 5310-00-409-9031 NSN: 5310-00-409-9031

Features and Characteristics

Hole Diameter
Between 0.379 inches and 0.389 inches
Shoulder Diameter
0.530 inches
Outside Diameter
0.680 inches
Shoulder Height
Between 0.025 inches and 0.030 inches
Material Thickness
Between 0.027 inches and 0.033 inches
Recess Angle
270.0 degrees
Material
Steel
Style Designator
Shouldered and recessed
FSC
5310 Nuts And Washers
NIIN
004099031
NSN
5310004099031

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
B5144178
Cage Code:
7U177
Status:
A
MSDS:
Part Number:
5144178
Cage Code:
72582
Status:
A
MSDS:
Part Number:
PC5144178
Cage Code:
C7432
Status:
A
MSDS:
Part Number:
5310004099031
Cage Code:
SCY13
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 5310-00-409-9031
What are the manufacturers of nsn 5310004099031?
Does this nsn 5310004099031 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310004099031
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 5310004099031 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310004099031 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310004099031?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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