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Recessed Washer NSN 5310-00-849-0430

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 5310-00-849-0430 NSN: 5310-00-849-0430

Features and Characteristics

Hole Diameter
Between 0.625 inches and 0.636 inches
Outside Diameter
Between 1.195 inches and 1.215 inches
Recess Diameter
Between 0.770 inches and 0.790 inches
Material Thickness
Between 0.073 inches and 0.087 inches
Hardness Rating
Between 36.0 rockwell c and 40.0 rockwell c
Recess Angle
Between 90.0 degrees and 100.0 degrees
Material
Steel comp 4130 or steel comp 8630
Material Specification
Mil-s-18729 military specification 1st material response or mil-s-18728 military specification 2nd material response
Surface Treatment
Nickel and cadmium
Surface Treatment Specification
Ams 2416 assn standard single treatment response
Style Designator
15 recessed
Specification Data
81205-bacw10bn manufacturers standard
FSC
5310 Nuts And Washers
NIIN
008490430
NSN
5310008490430

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
BACW10BN10C
Cage Code:
17765
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 5310-00-849-0430
What are the manufacturers of nsn 5310008490430?
Does this nsn 5310008490430 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310008490430
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 5310008490430 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310008490430 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310008490430?
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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