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Recessed Washer NSN 5310-00-364-6390

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 5310-00-364-6390 NSN: 5310-00-364-6390

Features and Characteristics

Hole Diameter
Between 18.800 millimeters and 18.950 millimeters
Outside Diameter
Between 32.650 millimeters and 32.750 millimeters
Overall Height
Between 0.400 millimeters and 0.420 millimeters
Recess Depth
Between 0.200 millimeters and 0.210 millimeters
Material Thickness
Between 0.200 millimeters and 0.210 millimeters
Hardness Rating
Between 52.0 rockwell c and 55.0 rockwell c
Material
Steel comp 1118
Material Specification
Aisi assn standard single material response
Style Designator
Recessed
FSC
5310 Nuts And Washers
NIIN
003646390
NSN
5310003646390

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
WMS2079-1X
Cage Code:
D9182
Status:
A
MSDS:
Part Number:
NP4011PCP382E23
Cage Code:
55509
Status:
A
MSDS:
Part Number:
NP2164PC37
Cage Code:
55509
Status:
A
MSDS:
Part Number:
YN29S61-0118PC55
Cage Code:
80064
Status:
A
MSDS:
Part Number:
YP78S41-294PC37
Cage Code:
80064
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 5310-00-364-6390
What are the manufacturers of nsn 5310003646390?
Does this nsn 5310003646390 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310003646390
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 5310003646390 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310003646390 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310003646390?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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