Part Number
Part Number:
NSN:
NIIN:
Item Name:
SCREW , ADJUSTING , VALVE TAPPET
Definition:
AN EXTERNALLY THREADED SCREW-LIKE DEVICE WITH A HEXAGON, SQUARE, SLOTTED OR ANY OTHER TYPE DRIVE END. THE OTHER END MAY HAVE A SPHERICAL BALL, SOCKET OR OTHER TYPE OF MACHINED SURFACE. IT MAY HAVE A CONCENTRIC HOLE ALONG THE LONGITUDINAL CENTERLINE AND A HOLE PERPENDICULAR TO THE AXIS JOINING THE CONCENTRIC HOLE FOR LUBRICATION. IT IS SPECIFICALLY DESIGNED TO BE USED AS A MEANS FOR ADJUSTING ENGINE POPPET VALVE TAPPET CLEARANCES AND MAY BE FURNISHED WITH A LOCK NUT.
CAGE Information
| Code | Company |
|---|---|
| 12204 | DAIMLER CHRYSLER |
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 |
|---|---|---|
| ABUJ | THREAD SIZE | 3/8-24 |
| BZRR | THREAD SERIES | UNF |
| ABHP | OVERALL LENGTH | 1.183 INCHES NOMINAL |
| MATL | MATERIAL | STEEL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| ATKZ | FIRST END THREAD LENGTH | 0.375 INCHES NOMINAL |
| ABGC | SLOT WIDTH | 0.050 INCHES NOMINAL |
| AETC | METALLIC HARDNESS RATING | 36.0 MINIMUM ROCKWELL C AND 42.0 MAXIMUM ROCKWELL C |
| AASG | CASEHARDENING INDICATOR | CASEHARDENED |
| ASDB | WIDTH ACROSS FLATS | 0.441 INCHES NOMINAL |
| ATLF | SECOND END THREAD LENGTH | 0.160 INCHES NOMINAL |