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Shouldered And Recessed Washer NSN 5310-01-125-1231

Item Description

A washer, round in shape, having a centrally located hole. One bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. Either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing, sleeve; or spacer, sleeve. Excludes insulator, washer and thrust type washers.

NSN 5310-01-125-1231 NSN: 5310-01-125-1231

  Stock Availability

NSN 5310011251231 availability
(as of 11/11/2022).

  • NE: 163
  • NS: 15

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
Between 1.1885 inches and 1.1890 inches
Shoulder Diameter
Between 1.3132 inches and 1.3137 inches
Outside Diameter
1.625 inches
Recess Diameter
1.250 inches
Shoulder Height
0.190 inches
Material Thickness
Between 0.060 inches and 0.062 inches
Recess Angle
90.0 degrees
Special Features
Chamfer outside edge of boss 0.020 in., 30 deg
Material
Copper alloy 172
Material Specification
Qq-c-530, temper a federal specification single material response
Style Designator
Shouldered and recessed
FSC
5310 Nuts And Washers
NIIN
011251231
NSN
5310011251231

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
65122-11229-104
Cage Code:
78286
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7616108000
  • NAICS: 332722
  • SITC: 69440
  • Description: Cotters, cotter-pins, washers and similar articles, of aluminum
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-01-125-1231
What are the manufacturers of nsn 5310011251231?
Does this nsn 5310011251231 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310011251231
A washer, round in shape, having a centrally located hole. one bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. the thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. for items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing, sleeve; or spacer, sleeve. excludes insulator, washer and thrust type washers.
Does nsn 5310011251231 contain any precious metals?
No precious metal content.
Does nsn 5310011251231 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310011251231?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
15935
FIIG:
A022B0
App. Key:
A
Cond. Code:
1
Status:
A

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