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Recessed Washer NSN 5310-00-078-0032

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 5310-00-078-0032 NSN: 5310-00-078-0032

  Stock Availability

NSN 5310000780032 availability
(as of 08/16/2022).

  • NS: 58
  • NE: 1

Note: Availability of this item may have changed since it was last checked. Request a quote for an updated price and availability quote.

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Features and Characteristics

Hole Diameter
0.500 inches
Outside Diameter
Between 0.683 inches and 0.685 inches
Recess Diameter
0.540 inches
Material Thickness
0.156 inches
Recess Angle
90.0 degrees
Part Name Assigned By Controlling Agency
Navy special project
Material
Nickel alloy a
Material Specification
Qq-n-281 federal specification single material response
Style Designator
Recessed
FSC
5310 Nuts And Washers
NIIN
000780032
NSN
5310000780032

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
53A68A125
Cage Code:
30003
Status:
A
MSDS:
Part Number:
15647
Cage Code:
82340
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7508900000
  • NAICS: 332999
  • SITC: 69975
  • Description: Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire)
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-00-078-0032
What are the manufacturers of nsn 5310000780032?
Does this nsn 5310000780032 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310000780032
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 5310000780032 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310000780032 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310000780032?
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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