312-031-625

312031625 Spring Tension Washer

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Datasheet. 312-031-625 specification

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

0.312in. ⁓5/16"

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.

0.625in.

Overall Height
The distance measured in a straight line from the bottom to the top of an item.

0.048in.

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

0.031in.

Part Name Assigned By Controlling Agency
The name assigned to the item by the government agency or commercial organization controlling the design of the item.

belleville disc spring

Special Features
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.

the calculated load at flat (pmax) is 233.0 lbs. the bolt size is 5/16 or .3125in.

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

steel corrosion resisting

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

spring tension

Answers.

What is the style?

Spring tension

What material is the spring tension washer made of ?

Steel corrosion resisting

What is the thickness?

0.031 inches

What is the outside diameter?

0.625 inches maximum

What is the inside hole diameter?

0.312 inches minimum

What is the NSN for 312-031-625?

5310-01-611-7823

How is this classified for shipping?

Schedule B number: 7318210000
nmfc 194160
Spring washers and other lock washers, iron or steel

What's the federal classification of 312-031-625?

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 5310-01-611-7823 WASHER,SPRING TENSION

spring tension the calculated load at flat (pmax) is 233.0 lbs. the bolt size is 5/16 or .3125" belleville disc spring 0.031" material thickness 0.625" outside diameter 0.312" hole diameter

NIIN
016117823
NIIN Date
09/25/12
Schedule B
7318210000 
Name Code
15938
FIIG
A022B0
QUP
 
Historical Price
$2.28 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

Major End Users Countries and entities

  • - Department of The Army 
  • - U.s. Marine Corps 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
50.0 
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
Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater 
Commodity (for shipments via water)
Metal hardware 
NMFC (national motor freight code)
194160 WASHER OR GASKETS, IRON OR STEEL, 
UFC (universal freight code)
55210 

Similar by Design Other washers with similar characteristics

Nothing similar to this part number was found in our inventory

312-031-625 / Washer,spring tensionWhat is the formal definition of this item?

A bent spring metal washer with a centrally located hole. it is designed to exert pressure axially when assembled in place.