Poppet Drain Cock
740B5
(NSN) National Stock Number
4820-00-203-9389
Federal Supply Classification
4820 Nonpowered Valves
Item Name Code
16989
Schedule B Code
8481909090
Summary
3a 1st end thread class, right-hand 1st end thread direction, poppet flow control device, flared (tube) 1st end connection style, manual valve operation method, threaded external tube 1st end connection type
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| X | - | - | 3 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 2 | - | - | XX |
Identification
An item designed to drain fluids from fuel systems, tanks, filters, or similar items. It has a mounting end, a free flowing end, and a quick-acting nonmetallic sealed closure, usually spring loaded, that holds it in an "off" position. It requires no lubrication other than from the fluid being drained.
| INC | FIIG | Concept | Condition |
|---|---|---|---|
| 16989 | A530C0 | - | 1 |
Specifications
Thread Class
3a 1st end
Details
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.Thread Direction
right-hand 1st end
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.Flow Control Device
poppet
Details
The part that controls the flow through the item.Connection Style
flared (tube) 1st end
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.Valve Operation Method
manual
Details
The means used to control the operation of the valve.Connection Type
threaded external tube 1st end
Details
Indicates the type of connection/s/.Thread Quantity Per Inch
20 1st end
Details
The number of threads on the item per linear inch measured on a line parallel to the thread axis.Nominal Thread Size
0.437 inches 1st end
Details
A designation that is used for the purpose of general identification of the thread.Seat Angle
37.0 degrees 1st end
Details
The angle of the end surface upon which the mated surface seats.Nominal Outside Diameter Tube Accommodated
0.250 inches 1st end
Details
The nominal length of a straight line which passes through the center of the accommodated tube,and terminates at the outside circumference.Material
aluminum alloy body
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Surface Treatment
anodize
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.Style Designator
straight thru
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.Thread Series Designator
unf 1st end
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 |
|---|---|---|---|---|---|---|---|
| 633971-5 | 98897 | 5 | - | 5 | 2 | - | TU |
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 |
|---|---|---|---|
| 29300 | - | W | J |
| RVC | WCC | TCC | SHC |
|---|---|---|---|
| 1 | 594 | Z | Z |
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Manufacturer
FAQs
Frequently asked questions for NSN 4820-00-203-9389
What is the NIIN of the NSN 4820-00-203-9389?
The National Item Identification Number (NIIN) of the NSN 4820-00-203-9389 is 00-203-9389
When the NSN 4820-00-203-9389 was assigned to the Federal Catalog?
It was assigned 61 years ago, on Tue, Jan 1, 1963
Does the NSN 4820-00-203-9389 contain any precious metals?
Type/content is unknown
Does the NSN 4820-00-203-9389 contain any hazardous material?
No data in HMIRS
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