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Recessed Washer NSN 5310-00-276-3031

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 5310-00-276-3031 NSN: 5310-00-276-3031

Features and Characteristics

Hole Diameter
0.766 inches
Outside Diameter
1.500 inches
Recess Diameter
0.891 inches
Material Thickness
Between 0.359 inches and 0.375 inches
Hardness Rating
Between 75.0 rockwell a and 81.0 rockwell a
Recess Angle
90.0 degrees
Material
Steel comp mtx1020
Material Specification
66 federal standard single material response
Style Designator
Recessed
FSC
5310 Nuts And Washers
NIIN
002763031
NSN
5310002763031

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
422821
Cage Code:
00447
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 5310-00-276-3031
What are the manufacturers of nsn 5310002763031?
Does this nsn 5310002763031 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310002763031
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 5310002763031 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310002763031 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310002763031?
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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