Close Tolerance Screw

CA4850-04-32

CA4850-04-32
(NSN) National Stock Number
5305-00-089-9445
Federal Supply Classification
5305 Screws
Item Name Code
29294
Schedule B Code
-
Summary

Right-hand thread direction, 0.402 inches minimum and 0.438 inches maximum thread length, 2.418 inches minimum and 2.438 inches maximum fastener length, crowned hexagon head style, 0.126 inches minimum and 0.141 inches maximum head height, 0.430 inches minimum and 0.439 inches maximum width between flats

DAC HCC DMIL RNCC
5 - - 5
RNVC SADC MSDS RNAAC
2 - - KZ
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 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
0.402 inches minimum and 0.438 inches maximum
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
2.418 inches minimum and 2.438 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
crowned hexagon
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
Head Height
0.126 inches minimum and 0.141 inches maximum
Details A measurement from the bottom to the top of the head,in distinction from depth.
Width Between Flats
0.430 inches minimum and 0.439 inches maximum
Details None.
Locking Feature
detent ball grip
Details An element inserted into the fastener,or a design feature,that enables the fastener to effectively resist vibration and rotation.
Grip Diameter
0.2483 inches minimum and 0.2492 inches maximum
Details The length of a straight line which passes through the center of the grip,and terminates at the circumference.
Shank Unthreaded Hole Diameter
0.076 inches minimum first hole and 0.086 inches maximum first hole
Details The length of a straight line which passes through the center of the shank unthreaded hole,and terminates at the inside circumference.
Internal Drive Style
slot
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
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.
Grip Length
2.000 inches minimum and 2.016 inches maximum
Details A measurement of the longest dimension of the grip,in distinction from width.
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
39.0 rockwell c minimum fastener and 45.0 rockwell c maximum fastener
Details A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
Distance From Head Largest Bearing Surface To Shank Hole Center
2.323 inches minimum first hole and 2.343 inches maximum first hole
Details The distance from the shank hole centerline to the largest bearing surface of the head.
Surface Treatment
cadmium fastener and chromate fastener
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
passivate spring
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
qq-p-35 fed spec single treatment response spring
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.
Surface Treatment Document And Classification
qq-p-416,ty 2,cl 3 fed spec single treatment response fastener
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
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.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
AS04-32 84256 5 - 5 2 - KZ
VP1072-4-32 92215 5 - 5 9 - KZ
202-15500-4-32 80378 1 - 3 2 - KE
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
LOCKHEED MARTIN CORPORATION
CAGE: 29732
CHESAPEAKE , VA , 23320-2647
UNITED STATES
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FAQs
Frequently asked questions for NSN 5305-00-089-9445
What is the NIIN of the NSN 5305-00-089-9445?
The National Item Identification Number (NIIN) of the NSN 5305-00-089-9445 is 00-089-9445
When the NSN 5305-00-089-9445 was assigned to the Federal Catalog?
It was assigned 57 years ago, on Mon, Aug 7, 1967
Does the NSN 5305-00-089-9445 contain any precious metals?
Type/content is unknown
Does the NSN 5305-00-089-9445 contain any hazardous material?
No data in HMIRS

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