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Recessed Washer NSN 5310-00-797-7708

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 5310-00-797-7708 NSN: 5310-00-797-7708

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Features and Characteristics

Hole Diameter
Between 0.505 inches and 0.515 inches
Outside Diameter
Between 0.995 inches and 1.005 inches
Material Thickness
Between 0.151 inches and 0.161 inches
Min. Tensile Strength (psi)
126000 pounds per square inch
Hardness Rating
Between 27.0 rockwell c and 33.0 rockwell c
Top Recess Diameter
Between 0.608 inches and 0.618 inches
Bottom Recess Angle
90.0 degrees
Top Recess Angle
90.0 degrees
Bottom Recess Diameter
Between 0.608 inches and 0.618 inches
Material
Steel comp 4130
Material Specification
Mil-s-18729 cond a military specification single material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2, cl 2 federal specification single treatment response
Style Designator
Recessed both sides
FSC
5310 Nuts And Washers
NIIN
007977708
NSN
5310007977708

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
00804
Cage Code:
14153
Status:
A
MSDS:
Part Number:
9524621
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 5310-00-797-7708
What are the manufacturers of nsn 5310007977708?
Does this nsn 5310007977708 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310007977708
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 5310007977708 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310007977708 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310007977708?
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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