NIIN Output Data
NIIN:
NSN:
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 |
| 80064 |
NAVAL SHIP SYSTEMS COMMAND |
| 96169 |
ELECTRIC BOAT CORPORATION |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| AAWC |
FIRST DIAMETER FROM HEAD |
0.672 INCHES MINIMUM AND 0.673 INCHES MAXIMUM |
| AASA |
THREAD LENGTH |
1.120 INCHES NOMINAL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.625 INCHES |
| FEAT |
SPECIAL FEATURES |
FIRST DIA AFTER THREADS 1.060 IN. NOM LTH AND 0.535 IN. MIN,0.540 IN. MAX DIA |
| CMLP |
THREAD QUANTITY PER INCH |
18 |
| AAWJ |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER |
0.435 INCHES MINIMUM AND 0.535 INCHES MAXIMUM |
| ABQJ |
POINT STYLE |
DOG |
| AAWK |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER |
0.470 INCHES MINIMUM AND 0.655 INCHES MAXIMUM |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
QQ-N-281 CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| ABQZ |
INTERNAL DRIVE STYLE |
W/O INTERNAL DRIVE |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AAUY |
POINT LENGTH |
0.440 INCHES NOMINAL |
| ASXK |
HOLE QUANTITY |
3 |
| AAWE |
THIRD DIAMETER FROM HEAD |
0.672 INCHES MINIMUM AND 0.673 INCHES MAXIMUM |
| CSNG |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY |
4 |
| AAVA |
POINT DIAMETER |
0.310 INCHES NOMINAL |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| CRHC |
HOLE CONFIGURATION STYLE |
HEXAGON CORNERS |
| AAUB |
HOLE DIAMETER |
0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM |
| AAJD |
THREAD CLASS |
2A |
| AASK |
HEAD STYLE |
HEXAGON |
| MATT |
MATERIAL |
NICKEL ALLOY 400 OVERALL |
| BQDM |
HOLE TYPE |
DRILLED |
| AASB |
FASTENER LENGTH |
3.180 INCHES NOMINAL |
| AATB |
WIDTH BETWEEN FLATS |
0.937 INCHES NOMINAL |
| AAWH |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER |
0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| AAWL |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER |
0.630 INCHES MINIMUM AND 0.815 INCHES MAXIMUM |
| AAWF |
FOURTH DIAMETER FROM HEAD |
0.540 INCHES MAXIMUM |
| AASU |
HEAD HEIGHT |
0.380 INCHES NOMINAL |
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