Hexagon Head Cap Screw
855364-00
(NSN) National Stock Number
5305-00-071-2508
Federal Supply Classification
5305 Screws
Item Name Code
18257
Schedule B Code
8710000090
Summary
2a thread class, right-hand thread direction, 0.219 inches minimum and 0.375 inches maximum thread length, 0.344 inches minimum and 0.375 inches maximum fastener length, hexagon head style, 0.150 inches minimum and 0.163 inches maximum head height
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| 9 | - | - | 5 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 9 | - | - | XB |
Identification
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.
| INC | FIIG | Concept | Condition |
|---|---|---|---|
| 18257 | A003B0 | - | 1 |
Specifications
Thread Class
2a
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
0.219 inches minimum and 0.375 inches maximum
Details
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.Fastener Length
0.344 inches minimum and 0.375 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
hexagon
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.Head Height
0.150 inches minimum and 0.163 inches maximum
Details
A measurement from the bottom to the top of the head,in distinction from depth.Width Between Flats
0.428 inches minimum and 0.438 inches maximum
Details
None.End Item Identification
mrap rg-33; mrap - cougar tow; multiple launch rocket system (mlrs); a4 bradley fighting vehicle; a3 bradley fighting vehicle
Details
The national stock number or the identification information of the end equipment for which the item is a part.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
20
Details
The number of threads on the item per linear inch measured on a line parallel to the thread axis.Minimum Tensile Strength
150000 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
33.0 rockwell c minimum and 39.0 rockwell c maximum overall
Details
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.Minimum Yield Strength
130000 pounds per square inch
Details
The stress at which a material exhibits a specified limiting deviation from the proportionality of stress or strain.Material
steel overall
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material Document And Classification
sae j429,grade 8 assn std single material response or astm a354,grade bd 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
zinc 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
astm b633 ty 2 sc 3 assn std single treatment response 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
unc
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 |
|---|---|---|---|---|---|---|---|
| 303864 | H0G87 | 4 | - | 5 | 2 | - | ZN |
| B1821BH025C038N | 80204 | E | - | 5 | 9 | - | KZ |
| 91247A535 | 39428 | A | - | C | 1 | - | PA |
| 17406CR | 12603 | 4 | - | 5 | 9 | - | 9Z |
| 17C406CR | 12603 | 5 | - | 5 | 9 | - | KZ |
| 1C406 | 12603 | 5 | - | C | 1 | - | TU |
| 17C406 | 89749 | 5 | - | 5 | 2 | - | KZ |
| AES01C250378AW9A91 | 05047 | E | - | 3 | 2 | - | ZZ |
| ASME B18.2.1 | 05047 | E | - | 5 | 1 | - | ZZ |
| MS35305-1 | 96906 | 2 | - | 5 | 9 | - | 9Z |
| MS90728-1 | 96906 | 4 | - | 5 | 9 | - | KZ |
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
| HMIC | PMIC | ESD/EMI | Criticality |
|---|---|---|---|
| N | U | A | - |
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
FAQs
Frequently asked questions for NSN 5305-00-071-2508
What is the NIIN of the NSN 5305-00-071-2508?
The National Item Identification Number (NIIN) of the NSN 5305-00-071-2508 is 00-071-2508
When the NSN 5305-00-071-2508 was assigned to the Federal Catalog?
It was assigned 61 years ago, on Tue, Jan 1, 1963
Does the NSN 5305-00-071-2508 contain any precious metals?
Type/content is unknown
Does the NSN 5305-00-071-2508 contain any hazardous material?
No data in HMIRS
What is the ESD classification of NSN 5305-00-071-2508?
No known electrostatic discharge
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