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 |
| 56878 |
SPS TECHNOLOGIES LLC DBA AEROSPACE D |
| 92215 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
| 81755 |
LOCKHEED MARTIN CORPORATION DBA LOCK |
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| CSYM |
SURFACE FINISH |
32.0 MICROINCHES THREADS |
| AASL |
HEAD DIAMETER |
0.497 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| CSYM |
SURFACE FINISH |
32.0 MICROINCHES GRIP |
| CQFM |
HARDNESS RATING |
55.0 ROCKWELL C MINIMUM OVERALL AND 58.0 ROCKWELL C MAXIMUM OVERALL |
| SFTT |
SURFACE TREATMENT |
NICKEL OVERALL AND CADMIUM OVERALL |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| ANEE |
GRIP LENGTH |
0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM |
| AAUR |
GRIP DIAMETER |
0.2483 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM |
| AAJD |
THREAD CLASS |
3A |
| CQBC |
MINIMUM TENSILE STRENGTH |
300000 POUNDS PER SQUARE INCH |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
VANADIUM ALLOY M-A 87665 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| AASK |
HEAD STYLE |
FLAT COUNTERSUNK |
| CRSQ |
COUNTERSINK ANGLE |
99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| MATT |
MATERIAL |
STEEL OVERALL |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
AMS 2416 ASSN STD ALL TREATMENT RESPONSES OVERALL |
| AASB |
FASTENER LENGTH |
1.152 INCHES MINIMUM AND 1.199 INCHES MAXIMUM |
| AASA |
THREAD LENGTH |
0.267 INCHES MINIMUM AND 0.334 INCHES MAXIMUM |
| ABQZ |
INTERNAL DRIVE STYLE |
OFFSET CRUCIFORM (TORQUE SET) |
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