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Shouldered Washer NSN 5310-01-177-0903

Item Description

A washer, round in shape, and having a centrally located hole. One bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. 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 5310-01-177-0903 NSN: 5310-01-177-0903

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Features and Characteristics

Hole Diameter
0.258 inches
Shoulder Diameter
0.344 inches
Outside Diameter
0.500 inches
Shoulder Height
Between 0.118 inches and 0.123 inches
Material Thickness
Between 0.047 inches and 0.062 inches
Material
Plastic polytetrafluoroethylene
Material Specification
Mil-p-19468 military specification single material response
Style Designator
Shouldered
FSC
5310 Nuts And Washers
NIIN
011770903
NSN
5310011770903

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
W1-2162ST
Cage Code:
04729
Status:
A
MSDS:
Part Number:
13079866-1
Cage Code:
04939
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 3926904500
  • NAICS: 339991
  • SITC: 89399
  • Description: Gaskets,washers & other seals
  • End Use (Code 12770):
    Other industrial supplies

Q & A

Frequently asked questions for NSN 5310-01-177-0903
What are the manufacturers of nsn 5310011770903?
Does this nsn 5310011770903 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310011770903
A washer, round in shape, and having a centrally located hole. one bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. 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 5310011770903 contain any precious metals?
No precious metal content.
Does nsn 5310011770903 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310011770903?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
15934
FIIG:
A022B0
App. Key:
A
Cond. Code:
1
Status:
A

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