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 |
|---|---|
| 80205 | NATIONAL AEROSPACE STANDARDS COMMITT |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| ZZZX | DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY FLEET BALLISTIC QUALITY,ASIDENTIFIED BY QUALITY CONTROL NO. POSO 911900 |
| AASL | HEAD DIAMETER | 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL COMP 8630 OVERALL OR STEEL COMP 4340 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 4137 OVERALL OR STEEL COMP 3135 OVERALL OR STEEL COMP 4037 OVERALL OR STEEL COMP 8740 OVERALL |
| CQBC | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| CQHQ | MINIMUM YIELD STRENGTH | 130000 POUNDS PER SQUARE INCH |
| AAJD | THREAD CLASS | 3A |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AASU | HEAD HEIGHT | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.500 INCHES NOMINAL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AASA | THREAD LENGTH | 0.500 INCHES MINIMUM |
| ASDB | WIDTH ACROSS FLATS | 0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| ZZZY | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | AS MOD BY FLEET BALLISTIC MISSILE QUALITY,AS IDENTIFIED BY QUALITY CONTROL NO. P0S0 911900 |
| ZZZK | SPECIFICATION/STANDARD DATA | 80205-NAS608 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |