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Recessed Washer NSN 5310-01-539-2186

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 5310-01-539-2186 NSN: 5310-01-539-2186

Features and Characteristics

Hole Diameter
Between 0.635 inches and 0.645 inches
Outside Diameter
1.000 inches
Recess Diameter
Between 0.750 inches and 0.780 inches
Material Thickness
Between 0.062 inches and 0.067 inches
Material
Stainless steel
Material Specification
Mil-s-6721 military standard single material response
Style Designator
Recessed
FSC
5310 Nuts And Washers
NIIN
015392186
NSN
5310015392186

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
12W8881-7
Cage Code:
81755
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 5310-01-539-2186
What are the manufacturers of nsn 5310015392186?
Does this nsn 5310015392186 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310015392186
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 5310015392186 contain any precious metals?
No precious metal content.
Does nsn 5310015392186 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310015392186?
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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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
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