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Recessed Washer NSN 5310-00-931-0064

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 5310-00-931-0064 NSN: 5310-00-931-0064

Features and Characteristics

Hole Diameter
Between 0.281 inches and 0.307 inches
Outside Diameter
Between 1.180 inches and 1.220 inches
Recess Diameter
Between 0.470 inches and 0.510 inches
Material Thickness
0.090 inches
Recess Angle
100.0 degrees
Heat Treatment
T-3 solution heat treated, cold worked
Material
Steel comp 303
Material Specification
Qq-s-764 federal specification single material response
Style Designator
Recessed
FSC
5310 Nuts And Washers
NIIN
009310064
NSN
5310009310064

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
30-2479
Cage Code:
81205
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 5310-00-931-0064
What are the manufacturers of nsn 5310009310064?
Does this nsn 5310009310064 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310009310064
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 5310009310064 contain any precious metals?
No precious metal content.
Does nsn 5310009310064 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310009310064?
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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