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Recessed Washer NSN 5310-01-158-2059

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 5310-01-158-2059 NSN: 5310-01-158-2059

Features and Characteristics

Hole Diameter
1.760 inches
Outside Diameter
3.000 inches
Material Thickness
0.260 inches
Top Recess Diameter
1.880 inches
Bottom Recess Angle
90.0 degrees
Top Recess Angle
90.0 degrees
Bottom Recess Diameter
1.880 inches
Surface Finish
63.0 microinches top
Material
Copper alloy 630
Material Specification
Qq-c-465 federal specification single material response
Style Designator
Recessed both sides
FSC
5310 Nuts And Washers
NIIN
011582059
NSN
5310011582059

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
300-4684422 ITEM 7
Cage Code:
53711
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 5310-01-158-2059
What are the manufacturers of nsn 5310011582059?
Does this nsn 5310011582059 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310011582059
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 5310011582059 contain any precious metals?
No precious metal content.
Does nsn 5310011582059 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310011582059?
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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