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 |
---|---|
21450 | ARMY WEAPONS COMMAND ATTN AMSWE-REE- |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
MRC | Requirements Statement | Clear Text Reply |
---|---|---|
AATB | WIDTH BETWEEN FLATS | 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
AATB | WIDTH BETWEEN FLATS | 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
SFTT | SURFACE TREATMENT | CADMIUM OVERALL OR ZINC OVERALL |
CQFM | HARDNESS RATING | 302.0 BRINELL STANDARD MINIMUM OVERALL AND 351.0 BRINELL STANDARD MAXIMUM OVERALL |
CBBL | FEATURES PROVIDED | FINISHED HEAD |
CQHQ | MINIMUM YIELD STRENGTH | 130000 POUNDS PER SQUARE INCH |
AASU | HEAD HEIGHT | 0.312 INCHES MINIMUM AND 0.327 INCHES MAXIMUM |
AHYM | NOMINAL THREAD DIAMETER | 0.500 INCHES |
AAJF | THREAD DIRECTION | RIGHT-HAND |
AAUM | LOCKING FEATURE | DISTORTIONS BEARING SURFACE OF HEAD |
STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 2 FED SPEC 1ST TREATMENT RESPONSE OVERALL OR ASTM B633,TY 1 ASSN STD 2ND TREATMENT RESPONSE OVERALL |
MATT | MATERIAL | STEEL OVERALL |
THSD | THREAD SERIES DESIGNATOR | UNF |
AAJD | THREAD CLASS | 2A |
AASK | HEAD STYLE | HEXAGON |
CQBC | MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH |
AASB | FASTENER LENGTH | 1.094 INCHES MINIMUM AND 1.156 INCHES MAXIMUM |
CMLP | THREAD QUANTITY PER INCH | 20 |
AASA | THREAD LENGTH | 0.969 INCHES MINIMUM |