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Recessed Washer NSN 5310-00-116-4307

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 5310-00-116-4307 NSN: 5310-00-116-4307

Features and Characteristics

Hole Diameter
Between 0.195 inches and 0.205 inches
Outside Diameter
0.406 inches
Recess Diameter
Between 0.255 inches and 0.265 inches
Recess Depth
Between 0.025 inches and 0.035 inches
Material Thickness
Between 0.045 inches and 0.050 inches
Recess Angle
Between 86.0 degrees and 94.0 degrees
Part Name Assigned By Controlling Agency
Navy special project
Heat Treatment
As fabricated
Material
Steel
Material Specification
Stk540, fscm 03014 mfr ref single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Pf12 0.0003 in.Min, 0.0006 in.Max, fscm 21883 mfr ref single treatment response
Style Designator
Recessed
FSC
5310 Nuts And Washers
NIIN
001164307
NSN
5310001164307

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
77344079
Cage Code:
K0131
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7318220000
  • NAICS: 332722
  • SITC: 69422
  • Description: Washers other than lock washers, iron or steel
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-00-116-4307
What are the manufacturers of nsn 5310001164307?
Does this nsn 5310001164307 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310001164307
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 5310001164307 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310001164307 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310001164307?
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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