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Recessed Washer NSN 5310-00-452-8248

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 5310-00-452-8248 NSN: 5310-00-452-8248

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Features and Characteristics

Hole Diameter
Between 0.353 inches and 0.355 inches
Outside Diameter
Between 0.590 inches and 0.610 inches
Material Thickness
Between 0.0596 inches and 0.0600 inches
Top Recess Diameter
Between 0.338 inches and 0.345 inches
Bottom Recess Angle
Between 44.5 degrees and 45.5 degrees
Top Recess Angle
Between 44.5 degrees and 45.5 degrees
Bottom Recess Diameter
Between 0.338 inches and 0.345 inches
Surface Finish
16.0 microinches top
Material
Copper alloy
Style Designator
Recessed both sides
FSC
5310 Nuts And Washers
NIIN
004528248
NSN
5310004528248

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
665-54
Cage Code:
U4271
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7415210000
  • NAICS: 332722
  • SITC: 69432
  • Description: Copper washers including spring washers not threaded
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-00-452-8248
What are the manufacturers of nsn 5310004528248?
Does this nsn 5310004528248 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310004528248
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 5310004528248 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310004528248 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310004528248?
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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