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 |
|---|---|
| 53781 | SPX CORP |
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 |
|---|---|---|
| ABGC | SLOT WIDTH | 0.1580 INCHES MINIMUM AND 0.1620 INCHES MAXIMUM |
| AAZP | CHAMFER LENGTH | 0.0312 INCHES NOMINAL |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 37.0 ROCKWELL C NOMINAL OVERALL |
| ALZE | STEM DIAMETER | 0.3720 INCHES MINIMUM AND 0.3730 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 1.7450 INCHES MINIMUM AND 1.7550 INCHES MAXIMUM |
| ANNQ | MATERIAL AND LOCATION | STEEL, FED STD 66, AISI/SAE 3140 OVERALL |
| AJFY | SEAT ANGLE IN DEG | 45.0 |
| ALYZ | CARBON RELIEF GROOVE | NOT INCLUDED |
| AASK | HEAD STYLE | FLAT |
| ALYX | STEM STYLE | SLOTTED |
| AASU | HEAD HEIGHT | 0.1975 INCHES NOMINAL |
| ZZZV | FSC APPLICATION DATA | GASOLINE ENGINE |
| ABGD | SLOT LENGTH | 0.3300 INCHES MINIMUM AND 0.3380 INCHES MAXIMUM |
| ALZB | NECK RADIUS | 0.4375 INCHES NOMINAL |
| ALZD | STEM LENGTH | 4.9219 INCHES NOMINAL |
| ALZX | SLOT RADIUS | 0.0790 INCHES MINIMUM AND 0.0810 INCHES MAXIMUM |
| ALZT | DISTANCE FROM SLOT TO STEM END | 0.1065 INCHES MINIMUM AND 0.1085 INCHES MAXIMUM |
| AATE | CHAMFER ANGLE IN DEG | 45.0 |