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 |
26512 |
NORTHROP GRUMMAN SYSTEMS CORPORATION |
29372 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
84256 |
AVIBANK MFG. INC. |
92215 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
MRC |
Requirements Statement |
Clear Text Reply |
AASB |
FASTENER LENGTH |
0.853 INCHES MINIMUM AND 0.873 INCHES MAXIMUM |
AASB |
FASTENER LENGTH |
0.853 INCHES MINIMUM AND 0.873 INCHES MAXIMUM |
AAUR |
GRIP DIAMETER |
0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM |
AAJD |
THREAD CLASS |
3A |
AASU |
HEAD HEIGHT |
0.157 INCHES MINIMUM AND 0.172 INCHES MAXIMUM |
AASK |
HEAD STYLE |
CROWNED HEXAGON |
AATB |
WIDTH BETWEEN FLATS |
0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |
ANEE |
GRIP LENGTH |
0.375 INCHES MINIMUM AND 0.390 INCHES MAXIMUM |
FEAT |
SPECIAL FEATURES |
RETAINING ELEMENT IN SHANK |
AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.076 INCHES MINIMUM FIRST HOLE AND 0.086 INCHES MAXIMUM FIRST HOLE |
AASA |
THREAD LENGTH |
0.307 INCHES MINIMUM AND 0.357 INCHES MAXIMUM |
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