Engine Poppet Valve

(NSN) National Stock Number

2805-00-718-3957

Federal Supply Classification

2805 Except Aircraft; and Components Gasoline Reciprocating Engines

Item Name Code

15884

Schedule B Code

8409918000

Summary

Flat head style, 0.1860 inches minimum and 0.2010 inches maximum head height, 15.0 chamfer angle in deg, 0.0020 inches minimum and 0.0100 inches maximum chamfer length, 1.4950 inches minimum and 1.5050 inches maximum outside diameter, 46.0 seat angle in deg

DAC	HCC	DMIL	RNCC
5	-	-	5

RNVC	SADC	MSDS	RNAAC
2	-	-	AX

Identification

A mushroom or tulip-shaped item having a circular head with a conical face and an extended stem used to regulate the flow of incoming fuel-air mixture or air into the combustion chamber or exhaust gases from the combustion chamber of a reciprocating internal combustion engine.

INC	FIIG	Concept	Condition
15884	A11200	1	2

Specifications

Head Style

flat

Details

The style designation indicating the configuration that most nearly corresponds to the appearance of the head.

Head Height

0.1860 inches minimum and 0.2010 inches maximum

Details

A measurement from the bottom to the top of the head,in distinction from depth.

Chamfer Angle In Deg

15.0

Details

The measurement of the chamfer angle,expressed in degrees.

Chamfer Length

0.0020 inches minimum and 0.0100 inches maximum

Details

A measurement of the longest dimension of the chamfer,in distinction from width.

Outside Diameter

1.4950 inches minimum and 1.5050 inches maximum

Details

The length of a straight line which passes through the center of a circular figure or body,and terminates at the outside circumference.

Seat Angle In Deg

46.0

Details

The angle of the end surface upon which the mated surface seats,expressed in degrees.

Stem Style

double grooved

Details

The style designation indicating the configuration that most nearly corresponds to the appearance of the stem.

Carbon Relief Groove

not included

Details

An indication of whether or not a groove for relief of carbon accumulation is included.

Neck Radius

0.3440 inches nominal

Details

None.

Stem Length

4.7120 inches minimum and 4.7470 inches maximum

Details

A measurement of the longest dimension of a stem,in distinction from width.

Stem Diameter

0.3400 inches minimum and 0.3407 inches maximum

Details

None.

Distance From First Groove To Stem End

0.2890 inches nominal

Details

None.

Distance From Second Groove To Stem End

0.5290 inches minimum and 0.5390 inches maximum

Details

None.

First Groove Diameter

0.2970 inches minimum and 0.3030 inches maximum

Details

None.

Second Groove Diameter

0.2970 inches minimum and 0.3030 inches maximum

Details

None.

First Groove Width

0.0950 inches minimum and 0.1050 inches maximum

Details

None.

Second Groove Width

0.1050 inches minimum and 0.1150 inches maximum

Details

None.

Material And Location

cobalt alloy tip

Details

The element, compound, or mixture of which the item is fabricated, excludingany surface treatment, and its location. please use mrc matt with isac in place of this discontinued mrc.

Material And Location

cobalt alloy seat face

Details

The element, compound, or mixture of which the item is fabricated, excludingany surface treatment, and its location. please use mrc matt with isac in place of this discontinued mrc.

Material And Location

steel, fed std 66, sae hnv3 head

Details

The element, compound, or mixture of which the item is fabricated, excludingany surface treatment, and its location. please use mrc matt with isac in place of this discontinued mrc.

Material And Location

steel, fed std 66, sae hnv3 stem

Details

The element, compound, or mixture of which the item is fabricated, excludingany surface treatment, and its location. please use mrc matt with isac in place of this discontinued mrc.

Metallic Hardness Rating And Location

32.0 rockwell c nominal overall

Details

A numeric value,used in conjunction with a hardness rating scale,designating the metallic hardness rating and its location.

Fsc Application Data

gasoline engine

Details

The justification for the assignment of a federal supply class /fsc/ to an item based on the classification of the next higher classifiable assembly.

Master-Cross Reference List

Part	CAGE	DAC	HCC	RNCC	RNVC	MSDS	RNAAC
189610	04627	5	-	5	2	-	ZZ
1679S	54509	5	-	5	9	-	AX
3735316	7X677	2	-	3	2	-	AX
3735316	11862	2	-	5	9	-	AX
149859	30076	5	-	5	9	-	AX
B34528	88907	5	-	5	2	-	AX
E-255S	83087	5	-	5	9	-	AX

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
-	593	Z	9

Provided with every order

Order with confidence, we are a valued certified supplier serving customers in the military and aerospace industries.

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FAQs

Frequently asked questions for NSN 2805-00-718-3957

What is the NIIN of the NSN 2805-00-718-3957?

The National Item Identification Number (NIIN) of the NSN 2805-00-718-3957 is 00-718-3957

When the NSN 2805-00-718-3957 was assigned to the Federal Catalog?

It was assigned 62 years ago, on Tue, Jan 1, 1963

Does the NSN 2805-00-718-3957 contain any precious metals?

Type/content is unknown

Does the NSN 2805-00-718-3957 contain any hazardous material?

No data in HMIRS

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