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 |
06725 |
SPS TECHNOLOGIES LLC DBA AIR INDUSTR |
0ZC92 |
HEARTLAND PRECISION FASTENERS INC. |
56878 |
SPS TECHNOLOGIES LLC DBA AEROSPACE D |
76301 |
BOEING COMPANY THE DBA BOEING |
60516 |
WEST COAST AEROSPACE INC |
0PTK6 |
SPS TECHNOLOGIES INC |
L4528 |
LISI AEROSPACE CANADA CORP |
27624 |
PAUL R. BRILES INC. DBA PB FASTENERS |
58998 |
EMHART TEKNOLOGIES LLC DBA FASTENER |
80539 |
SPS TECHNOLOGIES LLC DBA AEROSPACE F |
73197 |
HI-SHEAR CORPORATION |
06950 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
1EM77 |
B & B SPECIALTIES INC. DBA G S AEROS |
C4293 |
ALCOA FASTENING SYSTEMS FAIRCHILD FA |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
MRC |
Requirements Statement |
Clear Text Reply |
AASL |
HEAD DIAMETER |
0.497 INCHES MINIMUM AND 0.506 INCHES MAXIMUM |
AAUJ |
SPLINE MAJOR DIAMETER |
0.154 INCHES MINIMUM AND 0.156 INCHES MAXIMUM |
FEAT |
SPECIAL FEATURES |
125 KSI SHEAR STRENGTH |
THSD |
THREAD SERIES DESIGNATOR |
UNJF |
AAJD |
THREAD CLASS |
3A |
ABQZ |
INTERNAL DRIVE STYLE |
TORX |
AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
CMLP |
THREAD QUANTITY PER INCH |
28 |
ABQJ |
POINT STYLE |
FLAT |
AASB |
FASTENER LENGTH |
0.910 INCHES MINIMUM AND 0.940 INCHES MAXIMUM |
AAJF |
THREAD DIRECTION |
RIGHT-HAND |
AAUR |
GRIP DIAMETER |
0.249 INCHES NOMINAL |
AASK |
HEAD STYLE |
FLAT COUNTERSUNK |
CRSQ |
COUNTERSINK ANGLE |
99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
ANEE |
GRIP LENGTH |
0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
AAVA |
POINT DIAMETER |
0.425 INCHES NOMINAL |
MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
MATT |
MATERIAL |
NICKEL ALLOY 718 OVERALL |
AASA |
THREAD LENGTH |
0.420 INCHES MINIMUM AND 0.430 INCHES MAXIMUM |
SFTT |
SURFACE TREATMENT |
PASSIVATE OVERALL |
CXCY |
PART NAME ASSIGNED BY CONTROLLING AGENCY |
BOLT, 100 DEGREE TENSION "HEAD, GEAR DRIVE RECESS |
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