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 |
|---|---|
| 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMS |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASU | HEAD HEIGHT | 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 1.108 INCHES MINIMUM AND 1.125 INCHES MAXIMUM |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL OR ZINC OVERALL |
| CBBL | FEATURES PROVIDED | FINISHED HEAD |
| AAJD | THREAD CLASS | 3A |
| AHYM | NOMINAL THREAD DIAMETER | 0.875 INCHES |
| CQFM | HARDNESS RATING | 28.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| CMLP | THREAD QUANTITY PER INCH | 14 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC 1ST TREATMENT RESPONSE OVERALL OR ASTM B633,TY 1,CL 3 ASSN STD 2ND TREATMENT RESPONSE OVERALL |
| AAUM | LOCKING FEATURE | DISTORTIONS BEARING SURFACE OF HEAD |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| MATT | MATERIAL | STEEL COMP 8740 OVERALL OR STEEL COMP 8640 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 1340 OVERALL |
| AASK | HEAD STYLE | HEXAGON |
| AASA | THREAD LENGTH | 0.797 INCHES MINIMUM AND 0.828 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 2.359 INCHES MINIMUM AND 2.391 INCHES MAXIMUM |