NAS1443-20

NAS144320 Lock Washer

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Datasheet. NAS1443-20 specification

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

3.730in. ⁓3-47/64"

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.

4.219in.

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

0.125in.

End Item Identification
The national stock number or the identification information of the end equipment for which the item is a part.

aircraft; C-5 a, b, c

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

36.0 rockwell c

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.

lockwasher bearing retainer

Color
A characteristic of light that can be specified in terms of luminance,dominant wavelength,and purity.

black

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

steel comp 1050

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.

ams 5085 assn std single material response

Surface Treatment
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.

oxide

Surface Treatment Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.

MIL-C-13924 class 1 grade c mil spec single treatment response

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

flat external teeth

Answers.

What quantity is this sold in?

1EA

What is the style?

Flat external teeth

What material is the lock washer made of ?

Steel comp 1050

What is the thickness?

0.125 inches

What is the outside diameter?

4.219 inches

What is the inside hole diameter?

3.730 inches

What is the NSN for NAS1443-20?

5310-01-586-0273

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 NAS1443-20?

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 5310-01-586-0273 WASHER,LOCK

Used on aircraft; c-5 a,b,c. flat external teeth oxide surface treated lockwasher bearing retainer 0.125" material thickness 4.219" outside diameter 3.730" hole diameter

NIIN
015860273
NIIN Date
06/16/10
Schedule B
7318210000 
Name Code
14218
FIIG
A022B0
Item Weight
0.000lbs
Item Dimensions
QUP
Historical Price
$1,649.58 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 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)
No rating
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)
Bolts or nuts (iron or steel),(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

NAS1443-20 / Washer,lockWhat is the formal definition of this item?

A washer which is usually round with a centrally located hole. its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. it may be made of one or two pieces