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Recessed Washer NSN 5310-00-143-6144

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 5310-00-143-6144 NSN: 5310-00-143-6144

Features and Characteristics

Hole Diameter
Between 0.465 inches and 0.470 inches
Outside Diameter
Between 0.830 inches and 0.831 inches
Overall Height
Between 0.130 inches and 0.140 inches
Recess Depth
Between 0.060 inches and 0.065 inches
Material Thickness
Between 0.070 inches and 0.076 inches
Hardness Rating
Between 81.2 rockwell a and 85.0 rockwell a
Surface Finish
63.0 microinches all surfaces
Special Features
Outside periphery of counterbore chamfered to depth of 0.020 in. Min, 0.030 in. Max at 8 to 12 deg
Material
Steel comp e52100
Material Specification
66 federal standard single material response or astm a322 assn standard single material response or astm a331 assn standard single material response
Style Designator
Recessed
FSC
5310 Nuts And Washers
NIIN
001436144
NSN
5310001436144

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
310395
Cage Code:
58163
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 5310-00-143-6144
What are the manufacturers of nsn 5310001436144?
Does this nsn 5310001436144 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310001436144
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 5310001436144 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310001436144 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310001436144?
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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