Part Number
Part Number:
NSN:
NIIN:
Item Name:
INSERT , ENGINE VALVE SEAT
Definition:
A METAL RING DESIGNED TO PROVIDE A SEATING SURFACE FOR A VALVE, POPPET, ENGINE IT IS MADE OF SPECIAL HIGH-GRADE ALLOY METAL THAT CAN WITHSTAND HIGH OPERATING TEMPERATURES. FOR FULID VALVES, SEE SEAT, VALVE.
CAGE Information
| Code | Company |
|---|---|
| 82796 | COLTEC INDUSTRIES INC. DBA FAIRBANKS |
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 |
|---|---|---|
| CQKW | BODY STEPPED INSIDE DIAMETER | 0.405 INCHES NOMINAL SECOND STEP |
| CQKW | BODY STEPPED INSIDE DIAMETER | 0.405 INCHES NOMINAL SECOND STEP |
| CQKW | BODY STEPPED INSIDE DIAMETER | 0.500 INCHES NOMINAL THIRD STEP |
| CQKW | BODY STEPPED INSIDE DIAMETER | 0.289 INCHES NOMINAL FIRST STEP |
| MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF SECOND THREADED PORTION |
| STYL | STYLE DESIGNATOR | DOUBLE FLANGED |
| CQFM | HARDNESS RATING | NOT RATED |
| FEAT | SPECIAL FEATURES | 1.000 IN. HEX WRENCHING FEATURE BETWEEN THREAD ENDS |
| CQJX | NOMINAL THREAD SIZE | 0.625 INCHES FIRST THREADED PORTION |
| CQKM | SEATING SURFACE SHAPE | FLAT |
| AAJD | THREAD CLASS | 2A FIRST THREADED PORTION |
| CQJX | NOMINAL THREAD SIZE | 0.750 INCHES SECOND THREADED PORTION |
| AAJD | THREAD CLASS | 2A SECOND THREADED PORTION |
| THSD | THREAD SERIES DESIGNATOR | UNF FIRST THREADED PORTION |
| ABKW | OVERALL HEIGHT | 1.625 INCHES NOMINAL |
| AASA | THREAD LENGTH | 0.490 INCHES NOMINAL SECOND THREADED PORTION |
| AASA | THREAD LENGTH | 0.375 INCHES NOMINAL FIRST THREADED PORTION |