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Shouldered Washer NSN 5310-00-155-4271

Item Description

A washer, round in shape, and having a centrally located hole. One bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. 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 5310-00-155-4271 NSN: 5310-00-155-4271

Features and Characteristics

Hole Diameter
Between 0.252 inches and 0.255 inches
Shoulder Diameter
Between 0.288 inches and 0.291 inches
Outside Diameter
Between 0.460 inches and 0.470 inches
Shoulder Height
Between 0.045 inches and 0.055 inches
Material Thickness
Between 0.075 inches and 0.085 inches
Heat Treatment
As fabricated
Material
Steel comp 303 or steel comp 303se
Style Designator
Shouldered
FSC
5310 Nuts And Washers
NIIN
001554271
NSN
5310001554271

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1298035
Cage Code:
10001
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7318220000
  • NAICS: 332722
  • SITC: 69422
  • Description: Washers other than lock washers, iron or steel
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-00-155-4271
What are the manufacturers of nsn 5310001554271?
Does this nsn 5310001554271 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310001554271
A washer, round in shape, and having a centrally located hole. one bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. 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 5310001554271 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310001554271 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310001554271?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
15934
FIIG:
A022B0
App. Key:
A
Cond. Code:
1
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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