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Recessed Washer NSN 5310-01-271-6897

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 5310-01-271-6897 NSN: 5310-01-271-6897

Features and Characteristics

Hole Diameter
Between 1.0092 inches and 1.0108 inches
Radius
0.020 inches
Outside Diameter
Between 1.754 inches and 1.758 inches
Recess Diameter
Between 1.722 inches and 1.726 inches
Material Thickness
0.355 inches
Special Features
One end recessed 1.188 diameter by 0.186 in. Thk; 2 holes at 180 degrees 6-32unc-2b
Material
Steel comp 303
Material Specification
Qq-s-764, cls 303 federal specification single material response
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35, typ iv federal specification single treatment response
Style Designator
Recessed both sides
FSC
5310 Nuts And Washers
NIIN
012716897
NSN
5310012716897

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
625-2911-001
Cage Code:
13499
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 5310-01-271-6897
What are the manufacturers of nsn 5310012716897?
Does this nsn 5310012716897 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310012716897
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 5310012716897 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310012716897 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310012716897?
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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