1821728

1821728 Spring Tension Washer
Home » Catalog » Nuts & Washers (p. 2590) » Spring Tension Washers (p. 80) » Part Number 1821728

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Datasheet. 1821728 specification

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

1.125in. ⁓1-1/8"

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.

1.312in.

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

0.227in. and 0.241in.

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

0.007in. and 0.021in.

Hardness Rating
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.

42.0 rockwell c and 48.0 rockwell c

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

steel comp 2

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.

MIL-S-11713 mil spec single material response

Answers.

What quantity is this sold in?

1EA

What material is the spring tension washer made of ?

Steel comp 2

What is the thickness?

0.007 inches minimum and 0.021 inches maximum

What is the outside diameter?

1.312 inches maximum

What is the inside hole diameter?

1.125 inches minimum

What is the NSN for 1821728?

5310-00-579-1365

How is this classified for shipping?

Schedule B number: 7318210000
nmfc 093486
Spring washers and other lock washers, iron or steel

What's the federal classification of 1821728?

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 5310-00-579-1365 WASHER,SPRING TENSION

0.007" material thickness 1.312" outside diameter 1.125" hole diameter

NIIN
005791365
NIIN Date
01/01/63
Schedule B
7318210000 
Name Code
15938
FIIG
A022B0
Item Weight
0.100lbs
Item Dimensions
--
QUP
1 
Historical Price
$66.88 EA
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
Metal content unknown
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

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

1. 45-78837 Cage 62983

Major End Users Countries and entities

  • - Department of The Navy 
  • - Department of The Air Force 

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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
Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater 
Commodity (for shipments via water)
Metal and metal products, nos, (less than 35 feet) 
NMFC (national motor freight code)
093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3) 
UFC (universal freight code)
48950 

Similar by Design Other washers with similar characteristics

Nothing similar to this part number was found in our inventory

1821728 / 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.