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Shouldered And Recessed Washer NSN 5310-00-331-9556

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 5310-00-331-9556 NSN: 5310-00-331-9556

Features and Characteristics

Hole Diameter
Between 0.384 inches and 0.390 inches
Shoulder Diameter
0.670 inches
Outside Diameter
Between 1.765 inches and 1.775 inches
Recess Diameter
1.650 inches
Shoulder Height
0.090 inches
Recess Depth
0.080 inches
Material Thickness
0.150 inches
Hardness Rating
Between 46.0 rockwell c and 52.0 rockwell c
Material
Steel
Material Specification
Ams6448 assn standard single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Ams2400 assn standard single treatment response
Style Designator
Shouldered and recessed
FSC
5310 Nuts And Washers
NIIN
003319556
NSN
5310003319556

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
560021
Cage Code:
30715
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 5310-00-331-9556
What are the manufacturers of nsn 5310003319556?
Does this nsn 5310003319556 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310003319556
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 5310003319556 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310003319556 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310003319556?
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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