3871

3871 Key Washer

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Quality Commitment

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Datasheet. 3871 specification

Hole Diameter
The length of a straight line which passes through the center of a hole,and terminates at the circumference.

0.3075in. and 0.3175in. ⁓21/64"

Outside Diameter
The length of a straight line which passes through the center of a circular figure or body,and terminates at the outside circumference.

0.745in. and 0.755in.

Internal Straight Key Width
The measurement from one flat surface of the key to the opposite flat surface.

0.060in.

Distance From Centerline To Top Of Internal Key

0.120in.

Internal Key Quantity
The number of internal keys included.

1

Material Thickness
A measurement of the smallest dimension of the material,in distinction from length or width.

0.0263in. and 0.0363in.

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

copper alloy

Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.

QQ-C-533 fed spec single material response

Style Designator
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.

key

Answers.

What quantity is this sold in?

1EA

What is the style?

Key

What material is the key washer made of ?

Copper alloy

What is the thickness?

0.0263 inches minimum and 0.0363 inches maximum

What is the outside diameter?

0.745 inches minimum and 0.755 inches maximum

What is the inside hole diameter?

0.3075 inches minimum and 0.3175 inches maximum

What is the NSN for 3871?

5310-00-813-6362

How is this classified for shipping?

Schedule B number: 7415210000
nmfc 194120
Copper washers including spring washers not threaded

What's the federal classification of 3871?

FSC 5310 ⁓ Nuts and washers

Note-nuts and washers, including specially designed, are to be classified in this fsc. a. nuts are a small metal block made in a variety of shapes such as square and hexagonal which is drilled and internally threaded. b. washers are a perforated piece of metal, leather, or other materials of various shapes or forms. they are used primarily as a seat for a bolt, nut, screw, rivet or nail to distribute pressure and prevent endwise motion over an area and/or to prevent movement between two parts by means of restraining features created by the shape of its edges.

Excluding bearing thrust washers (fsc 3120); shims (fsc 5365); ring spacers (fsc 5365); plate spacers (fsc 5365); lock rings (fsc 5365).

NSN 5310-00-813-6362 WASHER,KEY

key 0.0263" material thickness 0.745" outside diameter 0.3075" hole diameter

NIIN
008136362
NIIN Date
01/01/62
Schedule B
7415210000 
Name Code
01869
FIIG
A022B0
Item Weight
0.000lbs
Item Dimensions
--
QUP
Historical Price
$0.08 EA
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
No precious metals
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Other Part Numbers Parts with same form, fit, and function by other manufacturers

Major End Users Countries and entities

  • - Department of The Navy 
  • - U.s. Marine Corps 
  • - Spain 
  • - New Zealand 
  • - Turkey 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
Rating variable 
LCL (less than a car load rating)
Unknown
Special Cargo
No special type of cargo code applicable 
Air Freight (Minimum cargo door size required)
Shipment is not a consolidation and does not exceed 84 inches in any dimension. 
Customs Requirement Classification
Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing 
Commodity (for shipments via water)
Metal hardware 
NMFC (national motor freight code)
194120 WASHERS/GASKETS/PCKG DVCS NOI 
UFC (universal freight code)
95100 

Similar by Design Other washers with similar characteristics

Nothing similar to this part number was found in our inventory

3871 / Washer,keyWhat is the formal definition of this item?

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.