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Recessed Washer NSN 5310-00-413-6344

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 5310-00-413-6344 NSN: 5310-00-413-6344

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Features and Characteristics

Hole Diameter
0.135 inches
Outside Diameter
Between 0.384 inches and 0.385 inches
Overall Height
0.155 inches
Recess Depth
0.125 inches
Material Thickness
0.067 inches
Surface Finish
63.0 microinches outer
Material
Aluminum alloy 2024
Material Specification
Qq-a-225/6, temper t4 federal specification single material response
Surface Treatment
Silver
Surface Treatment Specification
Qq-s-365, type 2, grade b federal specification single treatment response
Style Designator
Recessed
FSC
5310 Nuts And Washers
NIIN
004136344
NSN
5310004136344

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
113447
Cage Code:
10138
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 5310-00-413-6344
What are the manufacturers of nsn 5310004136344?
Does this nsn 5310004136344 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310004136344
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 5310004136344 contain any precious metals?
Item contains silver.
Does nsn 5310004136344 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310004136344?
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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