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Recessed Washer NSN 5310-00-935-8989

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 5310-00-935-8989 NSN: 5310-00-935-8989

Features and Characteristics

Hole Diameter
Between 0.380 inches and 0.395 inches
Outside Diameter
Between 0.835 inches and 0.855 inches
Material Thickness
Between 0.190 inches and 0.195 inches
Hardness Rating
Between 50.0 rockwell c and 56.0 rockwell c
Top Recess Diameter
Between 0.489 inches and 0.499 inches
Bottom Recess Angle
90.0 degrees
Top Recess Angle
90.0 degrees
Bottom Recess Diameter
Between 0.489 inches and 0.499 inches
Surface Finish
63.0 microinches top
Material
Steel comp h11
Material Specification
Ams 6437 assn standard single material response or ms 6485 assn standard single material response
Surface Treatment
Nickel and cadmium
Surface Treatment Specification
Ams 2416 assn standard single treatment response
Style Designator
Recessed both sides
FSC
5310 Nuts And Washers
NIIN
009358989
NSN
5310009358989

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
MS9482-12
Cage Code:
96906
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 5310-00-935-8989
What are the manufacturers of nsn 5310009358989?
Does this nsn 5310009358989 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310009358989
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 5310009358989 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310009358989 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310009358989?
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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  •   Quality Inspected Parts
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