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Lock Washer NSN 5310-01-285-0221

Item Description

A washer which is usually round with a centrally located hole. Its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. It may be made of one or two pieces

NSN 5310-01-285-0221 NSN: 5310-01-285-0221

Features and Characteristics

Hole Diameter
2.187 inches
Outside Diameter
2.850 inches
Material Thickness
0.250 inches
Min. Tensile Strength (psi)
155000 pounds per square inch
Hardness Rating
Between 33.0 rockwell c and 40.0 rockwell c
Heat Treatment
Age hardening
Material
Nickel alloy k-500
Material Specification
Qq-n-286, cl a federal specification single material response
Style Designator
Split helical-right hand
Specification Data
81349-mil-s-24235/1 government specification
Departure From Cited Document
As modified by material
FSC
5310 Nuts And Washers
NIIN
012850221
NSN
5310012850221

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
M24235/1-035
Cage Code:
81349
Status:
A
MSDS:
Part Number:
MIL-S-24235/1
Cage Code:
81349
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7508900000
  • NAICS: 332999
  • SITC: 69975
  • Description: Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire)
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-01-285-0221
What are the manufacturers of nsn 5310012850221?
Does this nsn 5310012850221 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310012850221
A washer which is usually round with a centrally located hole. its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. it may be made of one or two pieces
Does nsn 5310012850221 contain any precious metals?
No precious metal content.
Does nsn 5310012850221 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310012850221?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
14218
FIIG:
A022B0
App. Key:
A
Cond. Code:
1
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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