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Key Washer NSN 5310-00-625-3891

Item Description

A washer of nonresilient material usually having two parallel bearing surfaces. The outside and/or inside edges have one or more protuberances. The ends and/or edges may be prebent at any angle or the protuberances may be prebent at any angle to the bearing surfaces. The keys or lugs may be fitted into keyways in adjacent material or they may be bent over after application to hold or lock one or more items in place. Excludes thrust type washer.

NSN 5310-00-625-3891 NSN: 5310-00-625-3891

Features and Characteristics

Hole Diameter
Between 3.167 inches and 3.187 inches
Outside Diameter
Between 3.690 inches and 3.710 inches
External Straight Key Width
Between 0.150 inches and 0.170 inches
Internal Straight Key Width
Between 0.290 inches and 0.300 inches
Distance From Centerline To Top Of Internal Key
Between 1.428 inches and 1.448 inches
Overall Distance Including Keys
Between 3.858 inches and 3.878 inches
External Key Quantity
4
Internal Key Quantity
2
Material Thickness
Between 0.046 inches and 0.054 inches
Hardness Rating
Between 32.0 rockwell c and 36.0 rockwell c
Surface Finish
63.0 microinches top
Special Features
Internal keys 180 degrees apart offset 13 degrees 3 min 52 sec from center line of external keys
Material
Steel comp 4130
Material Specification
Mil-s-18729 military specification single material response
Surface Treatment
Phosphate
Surface Treatment Specification
Mil-p-16232, type z, class a military specification single treatment response
Style Designator
Key
FSC
5310 Nuts And Washers
NIIN
006253891
NSN
5310006253891

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
BACW10BW27
Cage Code:
81205
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7318220000
  • NAICS: 332722
  • SITC: 69422
  • Description: Washers other than lock washers, iron or steel
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-00-625-3891
What are the manufacturers of nsn 5310006253891?
Does this nsn 5310006253891 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310006253891
A washer of nonresilient material usually having two parallel bearing surfaces. the outside and/or inside edges have one or more protuberances. the ends and/or edges may be prebent at any angle or the protuberances may be prebent at any angle to the bearing surfaces. the keys or lugs may be fitted into keyways in adjacent material or they may be bent over after application to hold or lock one or more items in place. excludes thrust type washer.
Does nsn 5310006253891 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310006253891 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310006253891?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
01869
FIIG:
A022B0
App. Key:
A
Cond. Code:
1
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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