Assembled Washer Screw
420478
(NSN) National Stock Number
5305-00-042-0478
Federal Supply Classification
5305 Screws
Item Name Code
06660
Schedule B Code
-
Summary
2a thread class, right-hand thread direction, 0.500 inches maximum thread length, 0.500 inches nominal fastener length, round head style, 0.334 inches minimum and 0.359 inches maximum head diameter
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| 5 | - | - | C |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 1 | 9X | - | ZZ |
Identification
A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
| INC | FIIG | Concept | Condition |
|---|---|---|---|
| 06660 | 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
0.500 inches maximum
Details
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.Fastener Length
0.500 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
round
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.Head Diameter
0.334 inches minimum and 0.359 inches maximum
Details
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.Head Height
0.123 inches minimum and 0.137 inches maximum
Details
A measurement from the bottom to the top of the head,in distinction from depth.Washer Quantity
1
Details
The number of washers included on the item.Internal Drive Style
cross recess type 1
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.Nominal Thread Diameter
0.190 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.Hardness Rating
40.0 rockwell c minimum primary washer and 50.0 rockwell c maximum primary washer
Details
A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.Primary Washer Outside Diameter
0.372 inches minimum and 0.383 inches maximum
Details
None.Primary Washer Style
flat internal teeth
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the primary washer.Primary Washer Material Thickness
0.022 inches nominal
Details
None.Material Document And Classification
sae assn std all material responses 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 or zinc 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
qq-p-416,ty 1,cl 3 fed spec 1st treatment response overall or qq-z-325,ty 1,cl 3 fed spec 2nd 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 |
|---|---|---|---|---|---|---|---|
| 5G1008 | 12603 | X | - | 5 | 9 | - | XX |
| 420478 | 24617 | X | - | 3 | 9 | - | XX |
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
FAQs
Frequently asked questions for NSN 5305-00-042-0478
What is the NIIN of the NSN 5305-00-042-0478?
The National Item Identification Number (NIIN) of the NSN 5305-00-042-0478 is 00-042-0478
When the NSN 5305-00-042-0478 was assigned to the Federal Catalog?
It was assigned 61 years ago, on Tue, Jan 1, 1963
Does the NSN 5305-00-042-0478 contain any precious metals?
Type/content is unknown
Does the NSN 5305-00-042-0478 contain any hazardous material?
No data in HMIRS
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