Close Tolerance Screw

HT307-5-12

HT307-5-12
(NSN) National Stock Number
5305-01-074-9045
Federal Supply Classification
5305 Screws
Item Name Code
29294
Schedule B Code
7318152000
Summary

3a thread class, right-hand thread direction, 0.467 inches nominal thread length, 1.217 inches nominal fastener length, flat countersunk head style, 0.625 inches minimum and 0.635 inches maximum head diameter

DAC HCC DMIL RNCC
5 - - 5
RNVC SADC MSDS RNAAC
9 - - ME
Identification

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.

INC FIIG Concept Condition
29294 A003B0 - 1
Specifications
Thread Class
3a
Details A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
Thread Direction
right-hand
Details 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.
Thread Length
0.467 inches nominal
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
1.217 inches nominal
Details 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.
Head Style
flat countersunk
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
Head Diameter
0.625 inches minimum and 0.635 inches maximum
Details The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
Grip Diameter
0.3266 inches minimum and 0.3276 inches maximum
Details The length of a straight line which passes through the center of the grip,and terminates at the circumference.
Single Shear Strength
132000 pounds per square inch
Details The minimum load,applied perpendicularly to the longitudinal axis of an item,at which point the item will fracture when subjected to the standard single shear test method.
Internal Drive Style
high-torque
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
Nominal Thread Diameter
0.312 inches
Details The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
Grip Length
0.750 inches nominal
Details A measurement of the longest dimension of the grip,in distinction from width.
Thread Quantity Per Inch
24
Details The number of threads on the item per linear inch measured on a line parallel to the thread axis.
Minimum Tensile Strength
220000 pounds per square inch
Details The maximum rated load in tension applied in a longitudinal direction,per unit of cross-sectional area,that the material can withstand without rupture.
Hardness Rating
46.0 rockwell c minimum overall and 50.0 rockwell c maximum overall
Details A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
Countersink Angle
100.0 degrees nominal
Details The included angle of the countersink.
Material
steel overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material Document And Classification
ams 6487 assn std single material response overall
Details The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.
Surface Treatment
cadmium overall and chromate overall
Details 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.
Surface Treatment Document And Classification
mac ps-13145 fscm 76301 mfr ref all treatment responses overall
Details The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
Thread Series Designator
unjf
Details A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
ST3M559-5-12 L4528 5 - 5 2 - ZZ
HS2623-5-12 17446 5 - 5 2 - ZZ
ST3M559-5-12 06950 5 - 5 2 - ZZ
66908H5-12 80539 2 - 3 2 - SB
ST3M559-5-12 73197 5 - 5 2 - ZZ
ST3M559-5-12 92215 5 - 5 9 - ZZ
HS2623-5-12 97928 5 - 5 9 - ME
ST3M559-5-12 76301 1 - 7 2 - ME
ST3M559-5-12 89513 5 - 5 9 - ZZ
66908H5-12 56878 2 - 5 9 - SB
ST3M559-5-12 56878 5 - 5 2 - ZZ
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N U - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
50590 - Q Q
RVC WCC TCC SHC
- 713 Z Z

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Manufacturer
FOSTER BROS MFG CO
CAGE: 73199
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FAQs
Frequently asked questions for NSN 5305-01-074-9045
What is the NIIN of the NSN 5305-01-074-9045?
The National Item Identification Number (NIIN) of the NSN 5305-01-074-9045 is 01-074-9045
When the NSN 5305-01-074-9045 was assigned to the Federal Catalog?
It was assigned 45 years ago, on Tue, Apr 10, 1979
Does the NSN 5305-01-074-9045 contain any precious metals?
Type/content is unknown
Does the NSN 5305-01-074-9045 contain any hazardous material?
No data in HMIRS

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