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 |
|---|---|
| 53711 | NAVAL SEA SYSTEMS COMMAND |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASU | HEAD HEIGHT | 1.236 INCHES MINIMUM AND 1.250 INCHES MAXIMUM |
| ASDB | WIDTH ACROSS FLATS | 0.875 INCHES NOMINAL |
| AASL | HEAD DIAMETER | 1.852 INCHES MINIMUM AND 1.875 INCHES MAXIMUM |
| AASA | THREAD LENGTH | 3.000 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 37.0 ROCKWELL C MINIMUM OVERALL AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASK | HEAD STYLE | FLAT CHAMFER |
| CMLP | THREAD QUANTITY PER INCH | 7 |
| AHYM | NOMINAL THREAD DIAMETER | 1.250 INCHES |
| AASB | FASTENER LENGTH | 2.860 INCHES MINIMUM AND 3.000 INCHES MAXIMUM |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| CQBC | MINIMUM TENSILE STRENGTH | 170000 POUNDS PER SQUARE INCH |
| AAJD | THREAD CLASS | 2A |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A574 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| MATT | MATERIAL | STEEL UNS K03104 OVERALL |