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Recessed Washer NSN 5310-00-637-9225

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 5310-00-637-9225 NSN: 5310-00-637-9225

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Features and Characteristics

Hole Diameter
Between 0.400 inches and 0.420 inches
Outside Diameter
Between 0.650 inches and 0.670 inches
Material Thickness
Between 0.102 inches and 0.108 inches
Top Recess Diameter
Between 0.440 inches and 0.470 inches
Bottom Recess Angle
Between 88.0 degrees and 92.0 degrees
Top Recess Angle
Between 88.0 degrees and 92.0 degrees
Bottom Recess Diameter
Between 0.440 inches and 0.470 inches
Material
Steel
Material Specification
Sae assn standard single material response
Surface Treatment
Silver
Style Designator
Recessed both sides
FSC
5310 Nuts And Washers
NIIN
006379225
NSN
5310006379225

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
34D263
Cage Code:
0AHP5
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 5310-00-637-9225
What are the manufacturers of nsn 5310006379225?
Does this nsn 5310006379225 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310006379225
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 5310006379225 contain any precious metals?
Item contains silver.
Does nsn 5310006379225 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310006379225?
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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