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Shouldered And Recessed Washer NSN 5310-00-531-3439

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 5310-00-531-3439 NSN: 5310-00-531-3439

Features and Characteristics

Hole Diameter
Between 0.591 inches and 0.597 inches
Shoulder Diameter
Between 0.710 inches and 0.750 inches
Outside Diameter
Between 1.050 inches and 1.070 inches
Shoulder Height
Between 0.025 inches and 0.055 inches
Material Thickness
Between 0.070 inches and 0.110 inches
Recess Angle
90.0 degrees
Material
Steel
Material Specification
Qq-s-763, class 304 federal specification 1st material response or qq-s-763, class 304l federal specification 2nd material response or mil-t-8506 military specification 3rd material response
Surface Treatment
Passivate
Style Designator
Shouldered and recessed
FSC
5310 Nuts And Washers
NIIN
005313439
NSN
5310005313439

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
163B5891
Cage Code:
05606
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 5310-00-531-3439
What are the manufacturers of nsn 5310005313439?
Does this nsn 5310005313439 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310005313439
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 5310005313439 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310005313439 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310005313439?
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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