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Recessed Washer NSN 5310-00-978-0883

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 5310-00-978-0883 NSN: 5310-00-978-0883

Features and Characteristics

Hole Diameter
Between 0.196 inches and 0.209 inches
Outside Diameter
Between 0.960 inches and 1.020 inches
Recess Diameter
Between 0.392 inches and 0.402 inches
Material Thickness
0.090 inches
Hardness Rating
Between 30.0 rockwell c and 35.0 rockwell c
Recess Angle
Between 99.0 degrees and 101.0 degrees
Heat Treatment
Normalized
Material
Steel
Surface Treatment
Phosphate
Style Designator
15 recessed
FSC
5310 Nuts And Washers
NIIN
009780883
NSN
5310009780883

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
135B5661
Cage Code:
05606
Status:
A
MSDS:
Part Number:
135B661
Cage Code:
05606
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 5310-00-978-0883
What are the manufacturers of nsn 5310009780883?
Does this nsn 5310009780883 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310009780883
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 5310009780883 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310009780883 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310009780883?
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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