Part Number
Part Number:
NSN:
NIIN:
Item Name:
SETSCREW
Definition:
AN EXTERNALLY THREADED DEVICE WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER WITH OR WITHOUT A HEAD AND HAVING A CUP, CONE, OR OTHER TYPE OF MACHINED POINT DESIGNED TO PREVENT OR RESTRICT RELATIVE MOVEMENT OF PARTS AND DESIGNED TO BE DRIVEN WITH EITHER A WRENCH OR INSERTED DRIVER. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS.
CAGE Information
| Code | Company |
|---|---|
| 78286 | SIKORSKY AIRCRAFT CORPORATION |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| ABQJ | POINT STYLE | CHAMFER DOG |
| AASK | HEAD STYLE | FILLISTER |
| AASU | HEAD HEIGHT | 0.172 INCHES NOMINAL |
| CQBC | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| AAJD | THREAD CLASS | 3A |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| AASB | FASTENER LENGTH | 0.812 INCHES NOMINAL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| CQFM | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| AAUY | POINT LENGTH | 0.312 INCHES NOMINAL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AASA | THREAD LENGTH | 0.500 INCHES MINIMUM |
| CWDK | POINT CHAMFER ANGLE | 45.0 DEGREES NOMINAL |
| AAVA | POINT DIAMETER | 0.156 INCHES NOMINAL |
| MATT | MATERIAL | STEEL COMP 4130 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 4037 OVERALL |
| AASL | HEAD DIAMETER | 0.406 INCHES NOMINAL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |