Part Number
Part Number:
NSN:
NIIN:
Item Name:
SCREW , CAP , SOCKET HEAD
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER. THE HEAD HAS AN INTERNAL SOCKET OR MULTIPLE SPLINE FOR USE WITH AN INSERTED DRIVER. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. EXCLUDES ITEMS WITH BEVEL (CONICAL) HEADS. SEE BOLT, INTERNAL WRENCHING. EXCLUDES SCREW, SHOULDER; AND SCREW, MACHINE.
CAGE Information
| Code | Company |
|---|---|
| 18355 | BOEING COMPANY THE DBA BOEING DIV DE |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| CRSQ | COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| CRSQ | COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| MATT | MATERIAL | STEEL COMP 8740 OVERALL OR STEEL COMP E4340 OVERALL OR STEEL COMP 4340 OVERALL OR STEEL COMP 6150 OVERALL OR STEEL COMP 4037 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 4140 OVERALL |
| AAJD | THREAD CLASS | 3A |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES NOMINAL FIRST HOLE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE HEAD |
| SFTT | SURFACE TREATMENT | CADMIUM HEAD |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.375 INCHES NOMINAL FIRST HOLE |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| CQBC | MINIMUM TENSILE STRENGTH | 60000 POUNDS PER SQUARE INCH |
| SFTT | SURFACE TREATMENT | CADMIUM THREADS |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE THREADS |
| AASL | HEAD DIAMETER | 0.453 INCHES NOMINAL |
| AASA | THREAD LENGTH | 0.328 INCHES MINIMUM |
| ASDB | WIDTH ACROSS FLATS | 0.157 INCHES MINIMUM AND 0.159 INCHES MAXIMUM |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| AASK | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT |
| AASB | FASTENER LENGTH | 1.516 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM |