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Recessed Washer NSN 5310-01-165-1331

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 5310-01-165-1331 NSN: 5310-01-165-1331

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Features and Characteristics

Hole Diameter
Between 3.156 inches and 3.172 inches
Outside Diameter
Between 4.872 inches and 4.875 inches
Material Thickness
Between 0.951 inches and 0.954 inches
Recess Angle
90.0 degrees
Special Features
0.094 in. Wide by 0.125 in. Deep notch on the outer surface
Material
Steel
Style Designator
15 recessed
FSC
5310 Nuts And Washers
NIIN
011651331
NSN
5310011651331

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1174372
Cage Code:
34712
Status:
A
MSDS:
Part Number:
318244 ITEM 16
Cage Code:
34712
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 5310-01-165-1331
What are the manufacturers of nsn 5310011651331?
Does this nsn 5310011651331 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310011651331
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 5310011651331 contain any precious metals?
No precious metal content.
Does nsn 5310011651331 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310011651331?
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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