73781CS-720

73781CS720 Hex Castellated Self-locking Nut

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Datasheet. 73781CS-720 specification

Thread Class
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.

3b

Thread Direction
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.

RIGHT-Hand

Nut Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.

castellated, hexagon

Nut Height

0.453in. ⁓29/64"

Width Across Flats
The shortest straight line between flats,perpendicular to the height.

0.494in. and 0.504in. ⁓33/64"

Temp Rating
A value which expresses the degree of heat or cold as applied to the operation,or limitation of operation,of an item.

800.0 deg fahrenheit

Thread Series
A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.

unjf

Thread Quantity Per Inch
The number of threads on the item per linear inch measured on a line parallel to the thread axis.

20

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

46.0 rockwell c

Nominal Thread Size
A designation that is used for the purpose of general identification of the thread.

0.4375in. ⁓29/64"

Bearing Surface Type
Indicates the type of bearing surface.

washer faced

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

steel corrosion resisting

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 5525 or ams 5732 or AMS5737 assn std single material response

Precious Material And Location
An indication of the precious material and its location in the item.

surfaces silver

Precious Material
Identification of the precious material contained in the item.

silver

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.

silver

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.

ams 2410 or ams 2411 assn std single treatment response

Answers.

What quantity is this sold in?

1EA

What material is the hex castellated self-locking nut made of ?

Steel corrosion resisting

What is the thread quantity per inch?

20

What is the thread direction?

Right-hand

What is the thread class?

3b

What is the NSN for 73781CS-720?

5310-01-358-6587

How is this classified for shipping?

Schedule B number: 7318160000
nmfc 093486
Nuts of iron or steel

What's the federal classification of 73781CS-720?

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 5310-01-358-6587 NUT,SELF-LOCKING,CASTELLATED,HEX

silver surface treated 20 thread quantity per inch right-hand 3b thread class

NIIN
013586587
NIIN Date
05/17/92
Schedule B
7318160000 
Name Code
29725
FIIG
A021A0
Item Weight
0.100lbs
Item Dimensions
--
QUP
Historical Price
$47.48 EA
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
Contains silver
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. 3D0026-7 Cage 88277
2. HC54709-7 Cage 15653
3. PHCR-57 Cage 62554
4. E9925-7 Cage 72962
5. PHCR57 Cage 89305

Major End Users Countries and entities

  • - Department of The Air Force 
  • - U.s. Coast Guard 
  • - Brazil 
  • - Spain 
  • - Malaysia 
  • - Australia 
  • - Canada 
  • - Republic of Korea 
  • - United Kingdom 
  • - Nato Maintenance And Supply Agency 

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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 nuts with similar characteristics

Nothing similar to this part number was found in our inventory

73781CS-720 / Nut,self-locking,castellated,hexWhat is the formal definition of this item?

A nut having 6 flat sides, flat on the bottom and having a slotted cylindrical or dome shaped upper portion. an integral feature is incorporated for locking on the threads of a mating member. the slots when used in conjunction with a solid or split (cotter) pin, act as an extra "fail safe" feature in critical applications. excludes nut (1), self-locking, slotted, hexagon.