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 |
73197 |
HI-SHEAR CORPORATION |
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 |
AHYM |
NOMINAL THREAD DIAMETER |
0.190 INCHES |
CSYM |
SURFACE FINISH |
32.0 MICROINCHES GRIP |
STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
BAC5861,CAGEC 81205 MFR REF SINGLE TREATMENT RESPONSE FASTENER |
THSD |
THREAD SERIES DESIGNATOR |
UNJF |
CSYM |
SURFACE FINISH |
32.0 MICROINCHES BEARING SURFACE OF HEAD |
CQBC |
MINIMUM TENSILE STRENGTH |
160000 POUNDS PER SQUARE INCH |
AASL |
HEAD DIAMETER |
0.350 INCHES MINIMUM AND 0.381 INCHES MAXIMUM |
AAJD |
THREAD CLASS |
3A |
SFTT |
SURFACE TREATMENT |
PHOSPHATE FASTENER |
AAJF |
THREAD DIRECTION |
RIGHT-HAND |
AASB |
FASTENER LENGTH |
1.035 INCHES MINIMUM AND 1.082 INCHES MAXIMUM |
CRSQ |
COUNTERSINK ANGLE |
99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
MATT |
MATERIAL |
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR RING |
AASU |
HEAD HEIGHT |
0.044 INCHES MINIMUM AND 0.046 INCHES MAXIMUM |
ANEE |
GRIP LENGTH |
0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM |
CBBL |
FEATURES PROVIDED |
O RING |
MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
ABQZ |
INTERNAL DRIVE STYLE |
HIGH-TORQUE |
AASA |
THREAD LENGTH |
0.363 INCHES NOMINAL |
AASK |
HEAD STYLE |
FLAT COUNTERSUNK UNDERCUT |
AAUR |
GRIP DIAMETER |
0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM |
MATT |
MATERIAL |
TITANIUM ALLOY UNS R56400 FASTENER |
CMLP |
THREAD QUANTITY PER INCH |
32 |
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