Panel Screw Assembly
990C899H03
(NSN) National Stock Number
5305-00-111-7551
Federal Supply Classification
5305 Screws
Item Name Code
33044
Schedule B Code
7318152000
Summary
2a thread class, right-hand thread direction, 0.375 inches nominal thread length, 1.000 inches nominal fastener length, flat chamfer head style, 0.750 inches nominal head diameter
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| 1 | - | - | 5 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 2 | - | - | SE |
Identification
A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. Attached to panel by threaded bushing or by flaring end of stand-off, or bushing. Used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. May be spring loaded.
| INC | FIIG | Concept | Condition |
|---|---|---|---|
| 33044 | 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
0.375 inches nominal
Details
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.Fastener Length
1.000 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
flat chamfer
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the head.Head Diameter
0.750 inches nominal
Details
The length of a straight line which passes through the center of a circular head,and terminates at the circumference.Head Height
0.250 inches nominal
Details
A measurement from the bottom to the top of the head,in distinction from depth.Material Accommodated Thickness
0.094 inches minimum and 0.203 inches maximum
Details
The thickness of the material to be accommodated.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
28
Details
The number of threads on the item per linear inch measured on a line parallel to the thread axis.Special Features
head vertically knurled
Details
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification on one or more other functions.Material
steel corrosion resisting fastener
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material
steel corrosion resisting spring
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material
steel corrosion resisting stand-off
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Surface Treatment
passivate 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
passivate stand-off
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.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 |
|---|---|---|---|---|---|---|---|
| 0N057142-1 | 98230 | 2 | - | 5 | 2 | - | XN |
| 53-14-210-24 | 94222 | 5 | - | 3 | 2 | - | SE |
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 |
|---|---|---|---|
| 36960 | - | W | - |
| RVC | WCC | TCC | SHC |
|---|---|---|---|
| - | 713 | Z | 9 |
Certified Supplier
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Manufacturer
NORTHROP GRUMMAN SYSTEMS CORPORATION DBA ELECTRONIC SYSTEMS
CAGE: 18323
BALTIMORE
, MD
, 21240-2001
UNITED STATES
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FAQs
Frequently asked questions for NSN 5305-00-111-7551
What is the NIIN of the NSN 5305-00-111-7551?
The National Item Identification Number (NIIN) of the NSN 5305-00-111-7551 is 00-111-7551
When the NSN 5305-00-111-7551 was assigned to the Federal Catalog?
It was assigned 56 years ago, on Wed, Aug 21, 1968
Does the NSN 5305-00-111-7551 contain any precious metals?
Does not contain precious metal
Does the NSN 5305-00-111-7551 contain any hazardous material?
No data in HMIRS
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