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Recessed Washer NSN 5310-01-015-9893

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 5310-01-015-9893 NSN: 5310-01-015-9893

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Features and Characteristics

Hole Diameter
Between 1.000 inches and 1.007 inches
Outside Diameter
Between 1.600 inches and 1.620 inches
Recess Diameter
Between 1.205 inches and 1.211 inches
Material Thickness
Between 0.280 inches and 0.320 inches
Min. Tensile Strength (psi)
150000 pounds per square inch
Recess Angle
90.0 degrees
Special Features
0.075 in. Min 0.080 in. Max radius opposite side recessed angle
Material
Steel comp 4140 or steel comp 8740 or steel comp 4340
Material Specification
Mil-s-5626 cond d military specification 1st material response or mil-s-6049 cond d military specification 2nd material response or mil-s-5000 cond d military specification 3rd material response
Style Designator
15 recessed
FSC
5310 Nuts And Washers
NIIN
010159893
NSN
5310010159893

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
6-55097-18
Cage Code:
82918
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 5310-01-015-9893
What are the manufacturers of nsn 5310010159893?
Does this nsn 5310010159893 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310010159893
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 5310010159893 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310010159893 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310010159893?
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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