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Shouldered And Recessed Washer NSN 5310-00-878-9930

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 5310-00-878-9930 NSN: 5310-00-878-9930

Features and Characteristics

Hole Diameter
Between 0.127 inches and 0.129 inches
Shoulder Diameter
Between 0.221 inches and 0.224 inches
Outside Diameter
Between 0.340 inches and 0.360 inches
Recess Diameter
0.177 inches
Shoulder Height
Between 0.038 inches and 0.042 inches
Material Thickness
Between 0.040 inches and 0.050 inches
Recess Angle
Between 58.0 degrees and 62.0 degrees
Surface Finish
63.0 microinches shoulder face
Material
Nickel alloy
Material Specification
Ams 5709 assn standard single material response
Style Designator
Shouldered and recessed
FSC
5310 Nuts And Washers
NIIN
008789930
NSN
5310008789930

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
554151
Cage Code:
77445
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 5310-00-878-9930
What are the manufacturers of nsn 5310008789930?
Does this nsn 5310008789930 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310008789930
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 5310008789930 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310008789930 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310008789930?
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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