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Shouldered And Recessed Washer NSN 5310-00-388-1080

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 5310-00-388-1080 NSN: 5310-00-388-1080

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Features and Characteristics

Hole Diameter
0.781 inches
Shoulder Diameter
1.562 inches
Outside Diameter
3.750 inches
Recess Diameter
1.500 inches
Shoulder Height
0.094 inches
Recess Depth
0.156 inches
Material Thickness
0.125 inches
Material
Steel
FSC
5310 Nuts And Washers
NIIN
003881080
NSN
5310003881080

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
FM665B
Cage Code:
55139
Status:
A
MSDS:
Part Number:
FM665BPCFM665B
Cage Code:
55139
Status:
A
MSDS:
Part Number:
LM2017PCFM665B
Cage Code:
55139
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 5310-00-388-1080
What are the manufacturers of nsn 5310003881080?
Does this nsn 5310003881080 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310003881080
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 5310003881080 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310003881080 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310003881080?
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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