NIIN Output Data
NIIN:
NSN:
Item Name:
SCREW , CLOSE TOLERANCE
Definition:
A SCREW, MACHINE OR SCREW, CAP, SOCKET HEAD WHOSE UNTHREADED PORTION IS OF SPECIFIED GRIP LENGTH, PLATED OR UNPLATED, AND IS MACHINED TO A TOLERANCE OF ONE THOUSANDTH (0.001 IN.) (0.025 MM) OR LESS OF A SPECIFIC DIAMETER FOR ITEMS (1.000 IN.) (25 MM) OR LESS IN DIAMETER. ITEMS OVER (1.000 IN.) (25 MM) IN DIAMETER SHALL HAVE A TOLERANCE OF FIFTEEN TEN THOUSANDTHS (0.0015 IN.) (0.038 MM) OR LESS. THE NOMINAL MAJOR DIAMETER OF THE THREADS SHALL BE AT LEAST ONE THOUSANDTH (0.001 IN.) (0.025 MM) BELOW THE MINIMUM SHANK DIAMETER, BUT NOT BELOW THE MINIMUM MAJOR DIAMETER FOR APPLICABLE CLASS OF FIT, AS SHOWN IN THE SCREW THREAD STANDARDS, FED STD H28 AND/OR OTHER NATIONALLY RECOGNIZED STANDARDS. THE HEAD IS DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER. IT IS NOT DESIGNED FOR ROTATION BY THE THUMB AND FINGERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS.
Reference/Part Number
CAGE Information
| Code |
Company |
| 06950 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
| 17446 |
HUCK INTERNATIONAL INC. DBA ALCOA FA |
| 80205 |
NATIONAL AEROSPACE STANDARDS COMMITT |
| 26512 |
NORTHROP GRUMMAN SYSTEMS CORPORATION |
| L4528 |
LISI AEROSPACE CANADA CORP |
| 97928 |
HUCK INTL INC |
| 73197 |
HI-SHEAR CORPORATION |
| 80539 |
SPS TECHNOLOGIES LLC DBA AEROSPACE F |
| 92215 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| AASL |
HEAD DIAMETER |
0.389 INCHES MINIMUM AND 0.394 INCHES MAXIMUM |
| AASB |
FASTENER LENGTH |
1.175 INCHES MINIMUM AND 1.222 INCHES MAXIMUM |
| CRSQ |
COUNTERSINK ANGLE |
100.0 DEGREES NOMINAL |
| ZZZK |
SPECIFICATION/STANDARD DATA |
26512-GB510L MANUFACTURERS STANDARD |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| ANEE |
GRIP LENGTH |
0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM |
| CQBC |
MINIMUM TENSILE STRENGTH |
160000 POUNDS PER SQUARE INCH |
| AAJD |
THREAD CLASS |
3A |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
| CSYM |
SURFACE FINISH |
63.0 MICROINCHES GRIP |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| CSYM |
SURFACE FINISH |
63.0 MICROINCHES THREADS |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASK |
HEAD STYLE |
FLAT COUNTERSUNK |
| AAUR |
GRIP DIAMETER |
0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| AASA |
THREAD LENGTH |
0.290 INCHES MINIMUM AND 0.357 INCHES MAXIMUM |
| ABQZ |
INTERNAL DRIVE STYLE |
HIGH-TORQUE |
| MATT |
MATERIAL |
STEEL COMP 4140 OVERALL OR STEEL COMP E4340 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 6150 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 4130 OVERALL |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
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