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Lock Washer NSN 5310-00-321-9978

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 5310-00-321-9978 NSN: 5310-00-321-9978

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Features and Characteristics

Hole Diameter
Between 0.3740 inches and 0.3755 inches
Outside Diameter
1.000 inches
Material Thickness
Between 0.120 inches and 0.125 inches
Material
Steel comp 4130
Material Specification
Mil-s-6758 military specification single material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2, cl 3 federal specification single treatment response
Style Designator
Serrated
FSC
5310 Nuts And Washers
NIIN
003219978
NSN
5310003219978

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
G307209-1
Cage Code:
D9182
Status:
A
MSDS:
Part Number:
CL-6-KFW
Cage Code:
D9182
Status:
A
MSDS:
Part Number:
3011630-2
Cage Code:
D9182
Status:
A
MSDS:
Part Number:
CL6KFW
Cage Code:
99862
Status:
A
MSDS:
Part Number:
3011630-3
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: 7318210000
  • NAICS: 332722
  • SITC: 69422
  • Description: Spring washers and other lock washers, iron or steel
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-00-321-9978
What are the manufacturers of nsn 5310003219978?
Does this nsn 5310003219978 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310003219978
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 5310003219978 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310003219978 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310003219978?
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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