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Shouldered Washer NSN 5310-01-168-7257

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 5310-01-168-7257 NSN: 5310-01-168-7257

Features and Characteristics

Hole Diameter
0.253 inches
Shoulder Diameter
0.310 inches
Outside Diameter
0.630 inches
Shoulder Height
0.047 inches
Material Thickness
0.031 inches
Material
Plastic polyamide
Style Designator
Shouldered
FSC
5310 Nuts And Washers
NIIN
011687257
NSN
5310011687257

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
0N321946-1
Cage Code:
98230
Status:
A
MSDS:
Part Number:
2646-31050-N253
Cage Code:
1YGB8
Status:
A
MSDS:
Part Number:
12SWS1019
Cage Code:
13764
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 5310-01-168-7257
What are the manufacturers of nsn 5310011687257?
Does this nsn 5310011687257 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310011687257
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 5310011687257 contain any precious metals?
No precious metal content.
Does nsn 5310011687257 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310011687257?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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