FHS-256-3

FHS2563 Self-locking Stud

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Datasheet. FHS-256-3 specification

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

2a nut thread

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 thread

Head Diameter
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.

0.140in. and 0.172in.

Locking Feature
An element inserted into the fastener,or a design feature,that enables the fastener to effectively resist vibration and rotation.

SELF-Clinching head

Overall Length
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.

0.171in. and 0.203in. ⁓13/64"

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

56 nut thread

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

0.086in. nut thread ⁓3/32"

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.

navy special project

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

steel comp 305

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-S-763 fed spec 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.

passivate

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

SELF-Locking

Thread Series Designator
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.

unc nut thread

Answers.

What quantity is this sold in?

1EA

What class is the thread series?

Unc nut thread

What is the style?

Self-locking

What material is the self-locking stud made of ?

Steel comp 305

What is the thread quantity per inch?

56 nut thread

What is the thread direction?

Right-hand nut thread

What is the thread class?

2a nut thread

What is the NSN for FHS-256-3?

5307-00-497-0384

What's the federal classification of FHS-256-3?

FSC 5307 ⁓ Studs

NSN 5307-00-497-0384 STUD,SELF-LOCKING

unc nut thread thread series self-locking passivate surface treated navy special project 56 nut thread thread quantity per inch 0.171" overall length right-hand nut thread 2a nut thread thread class

NIIN
004970384
NIIN Date
10/08/69
Schedule B
 
Name Code
27783
FIIG
A051A0
Item Weight
0.000lbs
Item Dimensions
QUP
Historical Price
$13.33 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. 7735285-73 Cage 99971
2. 7735285P73 Cage 99971
3. 7735285P0073 Cage 99971

Major End Users Countries and entities

  • - Department of The Navy 

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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)
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 studs with similar characteristics

Nothing similar to this part number was found in our inventory

FHS-256-3 / Stud,self-lockingWhat is the formal definition of this item?

A headed fastener threaded externally on a portion or on the full length of the shank. the head has projections on the underside or periphery, or is otherwise designed to be mechanically pressed and embedded in a metallic panel, or the like. it is securely locked in position by the displaced metal. for items that require locking rings, see bolt, self-locking and stud, locked in. excludes insert, screw thread.