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Recessed Washer NSN 5310-01-171-6549

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 5310-01-171-6549 NSN: 5310-01-171-6549

Features and Characteristics

Hole Diameter
Between 2.364 inches and 2.366 inches
Outside Diameter
Between 3.497 inches and 3.500 inches
Overall Height
0.810 inches
Recess Diameter
3.250 inches
Recess Depth
0.160 inches
Surface Finish
16.0 microinches outer
Special Features
Hole diameter chamfered at 2 places, 0.120 in. At a 45 degrees angle, recessed diahas a 0.060 in. Radius, od chamfered 0.120 in. At a 15 degrees angle at end opposite recess
Material
Steel comp 316
Material Specification
Qq-s-763, cond a federal specification single material response or astm a276, cond a assn standard single material response
Style Designator
Recessed
FSC
5310 Nuts And Washers
NIIN
011716549
NSN
5310011716549

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
5210504
Cage Code:
53711
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 5310-01-171-6549
What are the manufacturers of nsn 5310011716549?
Does this nsn 5310011716549 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310011716549
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 5310011716549 contain any precious metals?
No precious metal content.
Does nsn 5310011716549 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310011716549?
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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