Thumbscrew

179843-1

179843-1
(NSN) National Stock Number
5305-00-914-2925
Federal Supply Classification
5305 Screws
Item Name Code
06673
Schedule B Code
7318152000
Summary

3a thread class, right-hand thread direction, 1.375 inches minimum thread length, 1.500 inches nominal fastener length, knurled no. 1 head style, 0.750 inches nominal head diameter

DAC HCC DMIL RNCC
X - - 3
RNVC SADC MSDS RNAAC
2 - - XX
Identification

An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, splined or smoothed, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).

INC FIIG Concept Condition
06673 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
1.375 inches minimum
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
1.500 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
knurled no. 1
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
Head Diameter
0.750 inches nominal
Details The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
Head Height
0.125 inches nominal
Details A measurement from the bottom to the top of the head,in distinction from depth.
Point Style
flat
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the point.
Nominal Thread Diameter
0.250 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
28
Details The number of threads on the item per linear inch measured on a line parallel to the thread axis.
Hardness Rating
27.0 rockwell c minimum overall and 32.0 rockwell c maximum overall
Details A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
Material
steel comp 4130 overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Surface Treatment
cadmium 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.
Thread Series Designator
unf
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.
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
48950 - W -
RVC WCC TCC SHC
- 713 Z 9

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Manufacturer
NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MISSION SYSTEMS
CAGE: 26512
BETHPAGE , NY , 11714-1035
UNITED STATES
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FAQs
Frequently asked questions for NSN 5305-00-914-2925
What is the NIIN of the NSN 5305-00-914-2925?
The National Item Identification Number (NIIN) of the NSN 5305-00-914-2925 is 00-914-2925
When the NSN 5305-00-914-2925 was assigned to the Federal Catalog?
It was assigned 64 years ago, on Fri, Jan 1, 1960
Does the NSN 5305-00-914-2925 contain any precious metals?
Type/content is unknown
Does the NSN 5305-00-914-2925 contain any hazardous material?
No data in HMIRS

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