Poppet Drain Cock

740B5A

740B5A
(NSN) National Stock Number
4820-00-116-9475
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, bolted renewable seat ring type, double threaded section boss fitting gasket with locknut sealing, boss 1st end connection style, automatic valve operation method

DAC HCC DMIL RNCC
5 - - 3
RNVC SADC MSDS RNAAC
2 - - AX
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.
Renewable Seat Ring Type
bolted
Details Indicates the type of renewable seating ring in the item.
Connection Style
double threaded section boss fitting gasket with locknut sealing, boss 1st end
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.
Valve Operation Method
automatic
Details The means used to control the operation of the valve.
Connection Type
threaded external boss 1st end
Details Indicates the type of connection/s/.
Nominal Thread Size
0.438 inches 1st end
Details A designation that is used for the purpose of general identification of the thread.
Material
aluminum overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
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.
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 -
RVC WCC TCC SHC
- 576 Z 9

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Manufacturer
AUTO-VALVE, INC
CAGE: 91511
DAYTON , OH , 45417-9398
UNITED STATES
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FAQs
Frequently asked questions for NSN 4820-00-116-9475
What is the NIIN of the NSN 4820-00-116-9475?
The National Item Identification Number (NIIN) of the NSN 4820-00-116-9475 is 00-116-9475
When the NSN 4820-00-116-9475 was assigned to the Federal Catalog?
It was assigned 51 years ago, on Fri, Dec 29, 1972
Does the NSN 4820-00-116-9475 contain any precious metals?
Type/content is unknown
Does the NSN 4820-00-116-9475 contain any hazardous material?
No data in HMIRS

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