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Recessed Washer NSN 5310-00-520-6079

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 5310-00-520-6079 NSN: 5310-00-520-6079

Features and Characteristics

Hole Diameter
Between 0.440 inches and 0.460 inches
Outside Diameter
Between 0.985 inches and 0.990 inches
Overall Height
Between 0.334 inches and 0.354 inches
Recess Depth
0.125 inches
Material Thickness
Between 0.116 inches and 0.120 inches
Min. Tensile Strength (psi)
90000 pounds per square inch
Surface Finish
63.0 microinches all surfaces
Special Features
Counterbored corners rounded by 0.062 in. Radius, od rounded to 0.680 in. Diameter by 1.000 in. Radius
Material
Steel comp 4140 or steel comp 4340
Material Specification
Mil-s-5626 military specification 1st material response or mil-s-5000 military specification 2nd material response
Style Designator
Recessed
Test Data Document
81349-mil-i-6868 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
FSC
5310 Nuts And Washers
NIIN
005206079
NSN
5310005206079

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
47-130-118-1
Cage Code:
97499
Status:
A
MSDS:
Part Number:
1560H13-038
Cage Code:
81996
Status:
A
MSDS:
Part Number:
47-130-118
Cage Code:
97499
Status:
A
MSDS:
Part Number:
A264
Cage Code:
13730
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 5310-00-520-6079
What are the manufacturers of nsn 5310005206079?
Does this nsn 5310005206079 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310005206079
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 5310005206079 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310005206079 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310005206079?
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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