Assembled Washer Screw
311563
(NSN) National Stock Number
5305-00-450-5745
Federal Supply Classification
5305 Screws
Item Name Code
06660
Schedule B Code
-
Summary
2a thread class, 0.938 inches minimum thread length, 0.969 inches minimum and 1.000 inches maximum fastener length, 0.220 inches minimum and 0.222 inches maximum head height, 0.367 inches minimum and 0.375 inches maximum width between flats, 0.480 inches minimum and 0.520 inches maximum extended washer diameter
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| 5 | - | - | 5 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 2 | - | - | 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 Length
0.938 inches minimum
Details
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.Fastener Length
0.969 inches minimum and 1.000 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 Height
0.220 inches minimum and 0.222 inches maximum
Details
A measurement from the bottom to the top of the head,in distinction from depth.Width Between Flats
0.367 inches minimum and 0.375 inches maximum
Details
None.Extended Washer Diameter
0.480 inches minimum and 0.520 inches maximum
Details
None.Extended Washer Thickness
0.030 inches minimum and 0.050 inches maximum
Details
None.Washer Quantity
1
Details
The number of washers included on the item.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.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.Primary Washer Outside Diameter
0.493 inches maximum
Details
None.Primary Washer Style
split helical ring
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the primary washer.Primary Washer Material Thickness
0.062 inches nominal
Details
None.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 |
|---|---|---|---|---|---|---|---|
| 311563 | 21119 | 5 | - | 5 | 9 | - | CD |
| 311563 | 32195 | 5 | - | 5 | 9 | - | KZ |
| 311563 | 80256 | 5 | - | 3 | 9 | - | CD |
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
| HMIC | PMIC | ESD/EMI | Criticality |
|---|---|---|---|
| N | A | - | - |
Freight
Universal / National Freight and Handling Information
| UFC | HMC | LTL | LCL |
|---|---|---|---|
| 48950 | - | W | - |
| RVC | WCC | TCC | SHC |
|---|---|---|---|
| - | 713 | Z | 9 |
Certified Supplier
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Manufacturer
FAQs
Frequently asked questions for NSN 5305-00-450-5745
What is the NIIN of the NSN 5305-00-450-5745?
The National Item Identification Number (NIIN) of the NSN 5305-00-450-5745 is 00-450-5745
When the NSN 5305-00-450-5745 was assigned to the Federal Catalog?
It was assigned 54 years ago, on Mon, Dec 15, 1969
Does the NSN 5305-00-450-5745 contain any precious metals?
Does not contain precious metal
Does the NSN 5305-00-450-5745 contain any hazardous material?
No data in HMIRS
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