National Stock Number (NSN) Output Data
NSN:
NIIN:
Item Name:
SCREW , EXTERNALLY RELIEVED BODY
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, AND WHOSE UNTHREADED PORTION HAS BEEN MACHINED OR GROUND IN ONE OR MORE PLACES OR OVER ITS ENTIRE LENGTH TO A MAXIMUM DIAMETER LESS THAN THE MINIMUM PITCH DIAMETER OF THE THREAD (EXCLUDES UNDERCUT FOR THREAD RELIEF). IT IS NO. 0 (0.060 IN.) (1.5 MM) OR LARGER, AND IS DESIGNED TO BE HELD OR DRIVEN WITH EITHER A WRENCH OR INSERTED DRIVER (EXCLUDING INTERNAL SOCKET AND MULTIPLE SPLINE TYPES) OR BOTH IN SIZES BELOW NO. 10 (0.190 IN.) (5 MM) AND LARGER SIZES MUST HAVE A HEAD DESIGNED FOR ANY TYPE INSERTED DRIVER (EXCLUDING INTERNAL SOCKET AND MULTIPLE SPLINE TYPES) BUT MAY ALSO BE DESIGNED FOR EXTERNAL WRENCHING. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. SEE ALSO BOLT, EXTERNALLY RELIEVED BODY AND BOLT, INTERNAL WRENCHING.
Reference/Part Number
CAGE Information
Code |
Company |
06540 |
NEW HAVEN MFG CORP AMATOM ELECTRONIC |
99687 |
RAYTHEON CO EQUIPMENT DEVELOPMENT LA |
D9182 |
BOSCH REXROTH GMBH LOHMANN STOLTERFO |
1YGB8 |
CAREY MANUFACTURING COMPANY INC. DBA |
49956 |
RAYTHEON COMPANY DBA RAYTHEON |
18876 |
U S ARMY AVIATION AND MISSILE COMMAN |
51196 |
V I P ELECTRONIC HARDWARE INC |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
MRC |
Requirements Statement |
Clear Text Reply |
AASK |
HEAD STYLE |
KNURLED NO. 4 |
ABQZ |
INTERNAL DRIVE STYLE |
SLOT |
MATT |
MATERIAL |
STEEL COMP 303 OVERALL |
CSNG |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY |
1 |
AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
AAJF |
THREAD DIRECTION |
RIGHT-HAND |
AASU |
HEAD HEIGHT |
0.547 INCHES MINIMUM AND 0.578 INCHES MAXIMUM |
MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
AASB |
FASTENER LENGTH |
1.099 INCHES MINIMUM AND 1.141 INCHES MAXIMUM |
THSD |
THREAD SERIES DESIGNATOR |
UNC |
AAJD |
THREAD CLASS |
2A |
AASL |
HEAD DIAMETER |
0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM |
AAWC |
FIRST DIAMETER FROM HEAD |
0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM |
CMLP |
THREAD QUANTITY PER INCH |
20 |
AASA |
THREAD LENGTH |
0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM |
SFTT |
SURFACE TREATMENT |
PASSIVATE OVERALL |
AAWH |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER |
0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM |
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