HT4075VS4-13-51

HT4075VS41351 Close Tolerance Screw

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Datasheet. HT4075VS4-13-51 specification

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

3a

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

Thread Length
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.

0.469in. ⁓15/32"

Fastener Length
The dimension,measured along a line parallel to the longitudinal axis,from the largest bearing surface of the fastener head to the extreme opposite end,or as specifically designated for other type fasteners.

1.266in. and 1.296in. ⁓1-19/64"

Head Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.

flat countersunk

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

0.456in. and 0.508in.

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

0.2490in. and 0.2495in.

Internal Drive Style
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.

HIGH-Torque

Nominal Thread Diameter
The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.

0.250in. ⁓1/4"

Grip Length
A measurement of the longest dimension of the grip,in distinction from width.

0.802in. and 0.822in.

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

28

Countersink Angle
The included angle of the countersink.

99.0 degrees and 101.0 degrees

Surface Finish
Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.

32.0 microinches bearing surface of HEAD32.0 microinches GRIP32.0 microinches threads

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

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.

tapped hole in head 0.138-32 UNJC-3B threads. distance from top of head to injection port 0.510 nom. inch. injection port 0.120 nom. in. lg; 0.060 nom. in. wide

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

titanium alloy uns R56400

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 4928 assn std single material response or ams 4967 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.

phosphate

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.

unjf

Answers.

What class is the thread series?

Unjf

What material is the close tolerance screw made of ?

Titanium alloy uns r56400

What is the thread quantity per inch?

28

What is the grip length?

0.802 inches minimum and 0.822 inches maximum

What is the head style?

Flat countersunk

What is the thread length?

0.469 inches

What is the thread direction?

Right-hand

What is the thread class?

3a

What is the NSN for HT4075VS4-13-51?

5305-01-337-4859

How is this classified for shipping?

Schedule B number: 8109900000
nmfc 096640
Zirconium and articles thereof nesoi

What's the federal classification of HT4075VS4-13-51?

FSC 5305 ⁓ Screws

NSN 5305-01-337-4859 SCREW,CLOSE TOLERANCE

unjf thread series phosphate surface treated tapped hole in head 0.138-32 unjc-3b threads. distance from top of head to injection port 0.510 nom. inch. injection port 0.120 nom. in. lg; 0.060 nom. in. wide navy special project 28 thread quantity per inch 0.802" grip length flat countersunk head style 0.469" thread length right-hand 3a thread class

NIIN
013374859
NIIN Date
04/16/91
Schedule B
8109900000 
Name Code
29294
FIIG
A003B0
QUP
 
Historical Price
$68.58 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

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)
70.0 
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)
096640 SCREWS, IRON OR STEEL 
UFC (universal freight code)
50600 

Similar by Design Other screws with similar characteristics

Nothing similar to this part number was found in our inventory

HT4075VS4-13-51 / Screw,close toleranceWhat is the formal definition of this item?

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. the nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. the head is designed to be held or driven with an inserted driver. it is not designed for rotation by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads.