Part Number
Part Number:
NSN:
NIIN:
Item Name:
SCREW , CAP , HEXAGON HEAD
Definition:
AN EXTERNALLY THREADED FASTENER DESIGNED FOR INSERTION INTO HOLES IN ASSEMBLED PARTS, FOR MATING WITH A PREFORMED INTERNAL THREAD AND FOR TIGHTENING OR RELEASING BY TORQUING THE HEAD. THE THREADED AND UNTHREADED PORTIONS ARE BOTH OF THE SAME NOMINAL DIAMETER OF 0.190 INCH (5 MM) OR LARGER. HEAD DIMENSIONS AND SIZES OF THREADED AND UNTHREADED PORTIONS SHALL CONFORM TO INTERNATIONALLY RECOGNIZED FASTENER STANDARDS. THE THREAD LENGTH BEING THE CONTROLLED DIMENSION, THE GRIP LENGTH IS NOT SPECIFIED. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. EXCLUDES BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; AND SCREW, CAP, SOCKET HEAD.
CAGE Information
| Code | Company |
|---|---|
| 56161 | GENERAL DYNAMICS LAND SYSTEMS CANADA |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| SFTT | SURFACE TREATMENT | ZINC OVERALL |
| CQBC | MINIMUM TENSILE STRENGTH | 113784 POUNDS PER SQUARE INCH |
| MATT | MATERIAL | STEEL PROPERTY CLASS 8.8 OVERALL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AHYM | NOMINAL THREAD DIAMETER | 12.0 MILLIMETERS |
| AASB | FASTENER LENGTH | 55.00 MILLIMETERS NOMINAL |
| AASU | HEAD HEIGHT | 8.0 MILLIMETERS NOMINAL |
| AASK | HEAD STYLE | HEXAGON |
| AASA | THREAD LENGTH | 25.0 MILLIMETERS MINIMUM AND 55.0 MILLIMETERS MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 19.0 MILLIMETERS NOMINAL |
| THSD | THREAD SERIES DESIGNATOR | M |
| CQQR | THREAD PITCH IN MILLIMETERS | 1.75 |
| CQFM | HARDNESS RATING | 18.0 ROCKWELL C MINIMUM OVERALL AND 31.0 ROCKWELL C MAXIMUM OVERALL |