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Recessed Washer NSN 5310-00-912-3693

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 5310-00-912-3693 NSN: 5310-00-912-3693

Features and Characteristics

Hole Diameter
Between 0.875 inches and 0.877 inches
Outside Diameter
Between 1.367 inches and 1.369 inches
Material Thickness
Between 0.322 inches and 0.328 inches
Top Recess Diameter
0.935 inches
Bottom Recess Angle
90.5 degrees
Top Recess Angle
89.5 degrees
Bottom Recess Diameter
0.937 inches
Surface Finish
63.0 microinches top
Special Features
Outside edges of both surfaces chamfered 0.030 in. Porm 0.010 in. By 45 degrees porm 1/2 deg.
Material
Aluminum alloy 7075
Material Specification
Qq-a-225/9 federal specification single material response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625 military specification single treatment response
Style Designator
Recessed both sides
FSC
5310 Nuts And Washers
NIIN
009123693
NSN
5310009123693

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
2051056
Cage Code:
10001
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 5310-00-912-3693
What are the manufacturers of nsn 5310009123693?
Does this nsn 5310009123693 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310009123693
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 5310009123693 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310009123693 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310009123693?
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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