Part Number
Part Number:
NSN:
NIIN:
Item Name:
VALVE , POPPET , ENGINE
Definition:
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.
CAGE Information
| Code | Company |
|---|---|
| 56442 | DIAMOND REO TRUCK CO |
Federal Supply Class
Title
GASOLINE RECIPROCATING ENGINES,
Inclusions:
INCLUDES GAS RECIPROCATING ENGINES; ALL GASOLINE RECIPROCATING ENGINES EXCEPT AIRCRAFT PRIME MOVING.
Exclusions:
EXCLUDES ENGINE ACCESSORIES (FSC 2990).
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| ALZN | SECOND GROOVE DIAMETER | 0.4325 INCHES MINIMUM AND 0.4425 INCHES MAXIMUM |
| ALZN | SECOND GROOVE DIAMETER | 0.4325 INCHES MINIMUM AND 0.4425 INCHES MAXIMUM |
| AAZP | CHAMFER LENGTH | 0.0625 INCHES NOMINAL |
| ALZH | DISTANCE FROM FIRST GROOVE TO STEM END | 0.2340 INCHES NOMINAL |
| ABKV | OUTSIDE DIAMETER | 1.8437 INCHES MINIMUM AND 1.8587 INCHES MAXIMUM |
| ALZB | NECK RADIUS | 0.3750 INCHES NOMINAL |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 35.0 MEGAWATTS 2 DRILLED HOLES, CONFIGURATION H STEM |
| AJFY | SEAT ANGLE IN DEG | 45.0 |
| ANNQ | MATERIAL AND LOCATION | STEEL, FED STD 66, AISI/SAE 3140 STEM |
| ALZL | FIRST GROOVE DIAMETER | 0.4290 INCHES MINIMUM AND 0.4340 INCHES MAXIMUM |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 45.0 MEGAWATTS 3 DRILLED HOLES, CONFIGURATION H STEM |
| ALZQ | FIRST GROOVE WIDTH | 0.1875 INCHES NOMINAL |
| ALYZ | CARBON RELIEF GROOVE | NOT INCLUDED |
| AATE | CHAMFER ANGLE IN DEG | 60.0 |
| ALZE | STEM DIAMETER | 0.4955 INCHES MINIMUM AND 0.4965 INCHES MAXIMUM |
| AASK | HEAD STYLE | MUSHROOM |
| ANNQ | MATERIAL AND LOCATION | STEEL, FED STD 66, SAE EV4 HEAD |
| ZZZV | FSC APPLICATION DATA | GASOLINE ENGINE |
| ALZR | SECOND GROOVE WIDTH | 0.1875 NOMINAL INCHES |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 48.0 MEGAWATTS 2 DRILLED HOLES, CONFIGURATION H TIP |
| AASU | HEAD HEIGHT | 0.2656 INCHES MINIMUM AND 0.2856 INCHES MAXIMUM |
| ALYX | STEM STYLE | DOUBLE GROOVED |
| ALZJ | DISTANCE FROM SECOND GROOVE TO STEM END | 0.6857 INCHES NOMINAL |
| ALZD | STEM LENGTH | 7.9375 INCHES NOMINAL |