Close Tolerance Screw

BM19025-5-8

BM19025-5-8
(NSN) National Stock Number
5305-00-047-2424
Federal Supply Classification
5305 Screws
Item Name Code
29294
Schedule B Code
-
Summary

3a thread class, right-hand thread direction, 0.859 inches minimum and 0.906 inches maximum fastener length, flat countersunk head style, 0.469 inches minimum and 0.474 inches maximum head diameter, 0.3110 inches minimum and 0.3120 inches maximum grip diameter

DAC HCC DMIL RNCC
5 - - 5
RNVC SADC MSDS RNAAC
9 - - ZZ
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.
Fastener Length
0.859 inches minimum and 0.906 inches maximum
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
0.469 inches minimum and 0.474 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
0.3110 inches minimum and 0.3120 inches maximum
Details The length of a straight line which passes through the center of the grip,and terminates at the circumference.
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.
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
160000 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
36.0 rockwell c minimum and 40.0 rockwell c maximum overall
Details A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
Part Name Assigned By Controlling Agency
navy special project
Details The name assigned to the item by the government agency or commercial organization controlling the design of the item.
Surface Treatment Document And Classification
qq-p-416,type 2 class 3 fed spec 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.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
HT239PB5-8 L4528 5 - 5 2 - ZZ
A147-5-8 17446 5 - 5 2 - ZZ
HT8043-5-8 06950 5 - 3 2 - ZZ
106750-5-8 80539 5 - 5 2 - ZZ
HT239PB5-8 73197 5 - 5 2 - ZZ
HT8043-5-8 92215 5 - 5 9 - ZZ
GB510L5-8 26512 1 - 5 2 - ZZ
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N A A -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
50600 - Q -
RVC WCC TCC SHC
- 713 Z 9

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Manufacturer
PRECISION FASTENING SUB OMARK INDUSTRIES INC
CAGE: 85495
EL SEGUNDO , CA , 90245
UNITED STATES
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FAQs
Frequently asked questions for NSN 5305-00-047-2424
What is the NIIN of the NSN 5305-00-047-2424?
The National Item Identification Number (NIIN) of the NSN 5305-00-047-2424 is 00-047-2424
When the NSN 5305-00-047-2424 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Fri, Nov 17, 1972
Does the NSN 5305-00-047-2424 contain any precious metals?
Does not contain precious metal
Does the NSN 5305-00-047-2424 contain any hazardous material?
No data in HMIRS
What is the ESD classification of NSN 5305-00-047-2424?
No known electrostatic discharge

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