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Recessed Washer NSN 5310-00-638-6554

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 5310-00-638-6554 NSN: 5310-00-638-6554

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Features and Characteristics

Hole Diameter
0.265 inches
Outside Diameter
Between 0.966 inches and 0.971 inches
Overall Height
0.218 inches
Recess Depth
Between 0.184 inches and 0.189 inches
Material Thickness
Between 0.0295 inches and 0.0345 inches
Material
Aluminum alloy 5052
Material Specification
Qq-a-250/8 federal specification single material response
Surface Treatment
Anodize
Style Designator
Recessed
FSC
5310 Nuts And Washers
NIIN
006386554
NSN
5310006386554

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
111279-02
Cage Code:
35351
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 5310-00-638-6554
What are the manufacturers of nsn 5310006386554?
Does this nsn 5310006386554 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310006386554
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 5310006386554 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310006386554 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310006386554?
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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