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Recessed Washer NSN 5310-00-453-9801

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 5310-00-453-9801 NSN: 5310-00-453-9801

Features and Characteristics

Hole Diameter
Between 0.283 inches and 0.285 inches
Outside Diameter
Between 0.427 inches and 0.447 inches
Recess Diameter
0.320 inches
Recess Depth
0.031 inches
Material Thickness
Between 0.057 inches and 0.067 inches
Recess Angle
Between 50.0 degrees and 70.0 degrees
Material
Steel
Surface Treatment
Phosphate
Style Designator
Recessed
FSC
5310 Nuts And Washers
NIIN
004539801
NSN
5310004539801

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
2146729
Cage Code:
10001
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 5310-00-453-9801
What are the manufacturers of nsn 5310004539801?
Does this nsn 5310004539801 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310004539801
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 5310004539801 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310004539801 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310004539801?
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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