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 |
|---|---|
| 66640 | CURTISS-WRIGHT FLIGHT SYSTEMS/SHELBY |
Federal Supply Class
Title
DIESEL ENGINES AND COMPONENTS
Inclusions:
INCLUDES AUTOMOTIVE, INDUSTRIAL, MARINE, LOCOMOTIVE, AND ALL OTHER TYPES OF DIESEL AND SEMI-DIESEL ENGINES.
Exclusions:
EXCLUDES ENGINES ACCESSORIES (FSC 2990).
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| ANNQ | MATERIAL AND LOCATION | STEEL, FED STD 66, SAE HNV4 HEAD |
| ANNQ | MATERIAL AND LOCATION | STEEL, FED STD 66, SAE HNV4 STEM |
| ANNQ | MATERIAL AND LOCATION | STEEL, FED STD 66, SAE HNV4 TIP |
| ALZD | STEM LENGTH | 5.9110 INCHES MINIMUM AND 5.9210 INCHES MAXIMUM |
| AJFY | SEAT ANGLE IN DEG | 45.0 |
| ALYX | STEM STYLE | GROOVED |
| ALZG | DISTANCE FROM GROOVE TO STEM END | 0.2140 INCHES MINIMUM AND 0.2240 INCHES MAXIMUM |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 37.0 MEGAWATTS 2 DRILLED HOLES, CONFIGURATION H STEM AND 45.0 MEGAWATTS 3 DRILLED HOLES, CONFIGURATION H STEM |
| ALYZ | CARBON RELIEF GROOVE | NOT INCLUDED |
| AASK | HEAD STYLE | FLAT |
| ABGF | GROOVE WIDTH | 0.1250 INCHES MINIMUM AND 0.1350 INCHES MAXIMUM |
| AAVZ | GROOVE DIAMETER | 0.3290 INCHES MINIMUM AND 0.3350 INCHES MAXIMUM |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 37.0 MEGAWATTS 2 DRILLED HOLES, CONFIGURATION H TIP AND 45.0 MEGAWATTS 3 DRILLED HOLES, CONFIGURATION H TIP |
| ABKV | OUTSIDE DIAMETER | 1.8070 INCHES MINIMUM AND 1.8170 INCHES MAXIMUM |
| ANNQ | MATERIAL AND LOCATION | STEEL SEAT FACE |
| ALZB | NECK RADIUS | 0.4400 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.1950 INCHES MINIMUM AND 0.2050 INCHES MAXIMUM |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 37.0 MEGAWATTS 2 DRILLED HOLES, CONFIGURATION H HEAD AND 45.0 MEGAWATTS 3 DRILLED HOLES, CONFIGURATION H HEAD |
| AAZP | CHAMFER LENGTH | 0.0200 INCHES MINIMUM AND 0.0300 INCHES MAXIMUM |
| ALZE | STEM DIAMETER | 0.3715 INCHES MINIMUM AND 0.3725 INCHES MAXIMUM |
| AATE | CHAMFER ANGLE IN DEG | 45.0 |