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Recessed Washer NSN 5310-00-274-4722

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 5310-00-274-4722 NSN: 5310-00-274-4722

Features and Characteristics

Hole Diameter
Between 0.443 inches and 0.449 inches
Outside Diameter
Between 0.940 inches and 0.960 inches
Overall Height
Between 0.185 inches and 0.191 inches
Recess Diameter
Between 0.543 inches and 0.557 inches
Recess Depth
0.051 inches
Material Thickness
Between 0.178 inches and 0.198 inches
Hardness Rating
Between 27.0 rockwell c and 33.0 rockwell c
Recess Angle
89.5 degrees
Material
Steel
Material Specification
Mil-s-6758 military specification single material response
Style Designator
Recessed
FSC
5310 Nuts And Washers
NIIN
002744722
NSN
5310002744722

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
9521925
Cage Code:
73842
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 5310-00-274-4722
What are the manufacturers of nsn 5310002744722?
Does this nsn 5310002744722 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310002744722
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 5310002744722 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310002744722 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310002744722?
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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