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Recessed Washer NSN 5310-01-320-5920

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 5310-01-320-5920 NSN: 5310-01-320-5920

Features and Characteristics

Hole Diameter
Between 0.314 inches and 0.318 inches
Outside Diameter
Between 0.575 inches and 0.585 inches
Recess Diameter
Between 0.386 inches and 0.396 inches
Material Thickness
Between 0.057 inches and 0.069 inches
Min. Tensile Strength (psi)
180000 pounds per square inch
Recess Angle
90.0 degrees
Material
Iron alloy 660 or nickel alloy 718
Material Specification
Ams 5525 assn standard 1st material response or ams 5737 assn standard 1st material response or ams 5596 assn standard 2nd material response or ams 5597 assn standard 2nd material response or ams 5662 assn standard 2nd material response
Surface Treatment
Aluminum alloy
Surface Treatment Specification
Ams 4006 assn standard single treatment response
Style Designator
15 recessed
Test Data Document
96906-mil-std-6866 standard (includes industry or association standards, individual manufactureer standards, etc.).
FSC
5310 Nuts And Washers
NIIN
013205920
NSN
5310013205920

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
AS19879C5A
Cage Code:
10630
Status:
A
MSDS:
Part Number:
03A257C5A
Cage Code:
76823
Status:
A
MSDS:
Part Number:
MM118C5A
Cage Code:
58009
Status:
A
MSDS:
Part Number:
VN948BF5C
Cage Code:
92215
Status:
A
MSDS:

Q & A

Frequently asked questions for NSN 5310-01-320-5920
What are the manufacturers of nsn 5310013205920?
Does this nsn 5310013205920 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310013205920
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 5310013205920 contain any precious metals?
No precious metal content.
Does nsn 5310013205920 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310013205920?
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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