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Shouldered Washer NSN 5310-00-493-3951

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 5310-00-493-3951 NSN: 5310-00-493-3951

Features and Characteristics

Hole Diameter
Between 0.253 inches and 0.263 inches
Shoulder Diameter
Between 0.422 inches and 0.432 inches
Outside Diameter
Between 0.620 inches and 0.640 inches
Shoulder Height
Between 0.022 inches and 0.032 inches
Material Thickness
Between 0.026 inches and 0.036 inches
Part Name Assigned By Controlling Agency
Navy special project
Material
Plastic polytetrafluoroethylene
Material Specification
Mil-p-14078 cancelled military specification single material response
Style Designator
Shouldered
FSC
5310 Nuts And Washers
NIIN
004933951
NSN
5310004933951

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
2718-43227T253
Cage Code:
1YGB8
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 5310-00-493-3951
What are the manufacturers of nsn 5310004933951?
Does this nsn 5310004933951 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310004933951
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 5310004933951 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310004933951 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310004933951?
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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