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Recessed Washer NSN 5310-00-082-1578

Item Description

A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes washer, concave, retainer, packing, and thrust type washers. See also spacer, sleeve; and spacer, stepped.

NSN 5310-00-082-1578 NSN: 5310-00-082-1578

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Features and Characteristics

Hole Diameter
Between 0.190 inches and 0.192 inches
Outside Diameter
0.438 inches
Recess Diameter
0.251 inches
Material Thickness
0.063 inches
Recess Angle
90.0 degrees
Material
Steel comp 4130
Material Specification
Mil-s-18729 military specification single material response
Surface Treatment
Cadmium
Style Designator
Recessed
FSC
5310 Nuts And Washers
NIIN
000821578
NSN
5310000821578

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
GW10F3
Cage Code:
26512
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 5310-00-082-1578
What are the manufacturers of nsn 5310000821578?
Does this nsn 5310000821578 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310000821578
A washer of any peripheral shape having a centrally located hole. both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. the thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. the maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. excludes washer, concave, retainer, packing, and thrust type washers. see also spacer, sleeve; and spacer, stepped.
Does nsn 5310000821578 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310000821578 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310000821578?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
15933
FIIG:
A022B0
App. Key:
A
Cond. Code:
1
Status:
A

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