National Stock Number (NSN) Output Data
NSN:
NIIN:
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 |
| 80539 |
SPS TECHNOLOGIES LLC DBA AEROSPACE F |
| L4528 |
LISI AEROSPACE CANADA CORP |
| 27624 |
PAUL R. BRILES INC. DBA PB FASTENERS |
| 58845 |
ABOUNDING SECURITY INC DIV OF MAA CO |
| 73197 |
HI-SHEAR CORPORATION |
| 26512 |
NORTHROP GRUMMAN SYSTEMS CORPORATION |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| CSYM |
SURFACE FINISH |
32.0 MICROINCHES THREADS |
| AHYM |
NOMINAL THREAD DIAMETER |
0.190 INCHES |
| CSYM |
SURFACE FINISH |
32.0 MICROINCHES GRIP |
| AASL |
HEAD DIAMETER |
0.360 INCHES MINIMUM AND 0.374 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
PAN NO. 2 |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| CSYM |
SURFACE FINISH |
32.0 MICROINCHES BEARING SURFACE OF HEAD |
| ABQZ |
INTERNAL DRIVE STYLE |
TORQUE-SET RIBBED |
| CQBC |
MINIMUM TENSILE STRENGTH |
160000 POUNDS PER SQUARE INCH |
| AAJD |
THREAD CLASS |
3A |
| AASB |
FASTENER LENGTH |
0.848 INCHES MINIMUM AND 0.878 INCHES MAXIMUM |
| AAUB |
HOLE DIAMETER |
0.032 INCHES MINIMUM AND 0.042 INCHES MAXIMUM |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| ASXK |
HOLE QUANTITY |
1 |
| FEAT |
SPECIAL FEATURES |
MAX TEMP RANGE: 315DEGC |
| ANEE |
GRIP LENGTH |
0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
NAS 621 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATT |
MATERIAL |
TITANIUM ALLOY OVERALL |
| BQDM |
HOLE TYPE |
DRILLED |
| AASA |
THREAD LENGTH |
0.363 INCHES NOMINAL |
| CRHC |
HOLE CONFIGURATION STYLE |
ROUND |
| AAUR |
GRIP DIAMETER |
0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
32 |
| AASU |
HEAD HEIGHT |
0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM |
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