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Recessed Washer NSN 5310-01-439-5181

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 5310-01-439-5181 NSN: 5310-01-439-5181

Features and Characteristics

Hole Diameter
0.171 inches
Outside Diameter
0.750 inches
Recess Diameter
0.289 inches
Material Thickness
0.093 inches
Recess Angle
100.0 degrees
Part Name Assigned By Controlling Agency
Navy special project
Color
Yellow
Material
Aluminum alloy 6061
Material Specification
Qq-a-225/8 federal specification single material response
Surface Treatment
Chromate
Surface Treatment Specification
Mil-c-5541, cl 3 military specification single treatment response
Style Designator
15 recessed
FSC
5310 Nuts And Washers
NIIN
014395181
NSN
5310014395181

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
60093101
Cage Code:
083V0
Status:
A
MSDS:
Part Number:
PL600371 ITEM 204
Cage Code:
083V3
Status:
A
MSDS:
Part Number:
PL600371-204
Cage Code:
20227
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 5310-01-439-5181
What are the manufacturers of nsn 5310014395181?
Does this nsn 5310014395181 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310014395181
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 5310014395181 contain any precious metals?
No precious metal content.
Does nsn 5310014395181 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310014395181?
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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