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 |
| 27624 |
PAUL R. BRILES INC. DBA PB FASTENERS |
| 58845 |
ABOUNDING SECURITY INC DIV OF MAA CO |
| 73197 |
HI-SHEAR CORPORATION |
| 80539 |
SPS TECHNOLOGIES LLC DBA AEROSPACE F |
| 26512 |
NORTHROP GRUMMAN SYSTEMS CORPORATION |
| 92215 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
| L4528 |
LISI AEROSPACE CANADA CORP |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| CSYM |
SURFACE FINISH |
32.0 MICROINCHES THREADS |
| CSYM |
SURFACE FINISH |
32.0 MICROINCHES GRIP |
| THSD |
THREAD SERIES DESIGNATOR |
UNJC |
| AASU |
HEAD HEIGHT |
0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM |
| AASB |
FASTENER LENGTH |
0.838 INCHES MINIMUM AND 0.853 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
PAN NO. 2 |
| CSYM |
SURFACE FINISH |
32.0 MICROINCHES BEARING SURFACE OF HEAD |
| CQBC |
MINIMUM TENSILE STRENGTH |
160000 POUNDS PER SQUARE INCH |
| AAJD |
THREAD CLASS |
3A |
| AASL |
HEAD DIAMETER |
0.308 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AHYM |
NOMINAL THREAD DIAMETER |
0.164 INCHES |
| ANEE |
GRIP LENGTH |
0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| MATT |
MATERIAL |
TITANIUM ALLOY OVERALL |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
AMS 4967 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AAUR |
GRIP DIAMETER |
0.1610 INCHES MINIMUM AND 0.1635 INCHES MAXIMUM |
| AASA |
THREAD LENGTH |
0.328 INCHES MINIMUM AND 0.363 INCHES MAXIMUM |
| ABQZ |
INTERNAL DRIVE STYLE |
OFFSET CRUCIFORM (TORQUE SET) |
| CMLP |
THREAD QUANTITY PER INCH |
32 |
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