Square Extended Washer Plain Nut
253259
(NSN) National Stock Number
5310-00-856-0973
Federal Supply Classification
5310 Nuts and Washers
Item Name Code
04890
Schedule B Code
7415338550
Summary
2b thread class, right-hand thread direction, 0.966 inches nominal washer outside diameter, 0.170 inches nominal overall height, square nut style, 0.125 inches nominal washer thickness
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| X | - | - | 3 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 2 | - | - | XX |
Identification
A nut having 4 flat sides and an integral washer which extends beyond the flats or periphery.
| INC | FIIG | Concept | Condition |
|---|---|---|---|
| 04890 | A021A0 | 1 | 1 |
Specifications
Thread Class
2b
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.Washer Outside Diameter
0.966 inches nominal
Details
None.Overall Height
0.170 inches nominal
Details
The distance measured in a straight line from the bottom to the top of an item.Nut Style
square
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.Washer Thickness
0.125 inches nominal
Details
None.Width Across Flats
0.724 inches nominal
Details
The shortest straight line between flats,perpendicular to the height.Thread Series
unc
Details
A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.Thread Quantity Per Inch
32
Details
The number of threads on the item per linear inch measured on a line parallel to the thread axis.Nominal Thread Size
0.138 inches
Details
A designation that is used for the purpose of general identification of the thread.Material
copper alloy overall
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Surface Treatment
nickel 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.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 |
|---|---|---|---|
| 48930 | - | Q | Q |
| RVC | WCC | TCC | SHC |
|---|---|---|---|
| - | 713 | Z | 9 |
Certified Supplier
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Manufacturer
LOCKHEED MARTIN CORP DBA LOCKHEED MARTIN DIV MST - EAGAN
CAGE: 90536
MANASSAS
, VA
, 20110-4166
UNITED STATES
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FAQs
Frequently asked questions for NSN 5310-00-856-0973
What is the NIIN of the NSN 5310-00-856-0973?
The National Item Identification Number (NIIN) of the NSN 5310-00-856-0973 is 00-856-0973
When the NSN 5310-00-856-0973 was assigned to the Federal Catalog?
It was assigned 62 years ago, on Mon, Jan 1, 1962
Does the NSN 5310-00-856-0973 contain any precious metals?
Type/content is unknown
Does the NSN 5310-00-856-0973 contain any hazardous material?
No data in HMIRS
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