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Recessed Washer NSN 5310-00-389-8137

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 5310-00-389-8137 NSN: 5310-00-389-8137

Features and Characteristics

Hole Diameter
Between 0.443 inches and 0.463 inches
Outside Diameter
Between 0.704 inches and 0.710 inches
Overall Height
Between 0.095 inches and 0.105 inches
Recess Diameter
0.687 inches
Recess Depth
0.062 inches
Material Thickness
Between 0.095 inches and 0.105 inches
Recess Angle
90.0 degrees
Material
Aluminum alloy 2017
Material Specification
Qq-a-225/5 federal specification single material response
Surface Treatment
Oxide film
Surface Treatment Specification
Mil-c-5541 military specification single treatment response
Style Designator
Recessed
FSC
5310 Nuts And Washers
NIIN
003898137
NSN
5310003898137

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
8379247
Cage Code:
19207
Status:
A
MSDS:
Part Number:
PC5295337
Cage Code:
7X677
Status:
A
MSDS:
Part Number:
5295337
Cage Code:
77060
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7616108000
  • NAICS: 332722
  • SITC: 69440
  • Description: Cotters, cotter-pins, washers and similar articles, of aluminum
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-00-389-8137
What are the manufacturers of nsn 5310003898137?
Does this nsn 5310003898137 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310003898137
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 5310003898137 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310003898137 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310003898137?
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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  •   Certificate of Conformance
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