National Stock Number (NSN) Output Data
NSN:
NIIN:
Item Name:
BOLT , CLOSE TOLERANCE
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE UNTHREADED PORTION IS OF A SPECIFIED GRIP LENGTH, PLATED OR UNPLATED, AND IS MACHINED TO A TOLERANCE OF ONE THOUSANDTH (0.001) OF AN INCH (0.025 MM) OR LESS OF A SPECIFIC DIAMETER FOR ITEMS ONE INCH (25 MM) OR LESS IN DIAMETER. ITEMS OVER ONE INCH (25 MM) IN DIAMETER SHALL HAVE A TOLERANCE OF FIFTEEN TEN-THOUSANDTHS (0.0015) OF AN INCH (0.038 MM) OR LESS. THE NOMINAL MAJOR DIAMETER OF THE THREADS SHALL BE AT LEAST ONE THOUSANDTH (0.001) OF AN INCH (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 NOT DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER, NOR IS IT DESIGNED FOR ROTATION BY THE THUMB AND FINGERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. FOR ITEMS HAVING CLOSE TOLERANCE, AND FABRICATED FROM MATERIAL HAVING 160,000 POUNDS PER SQUARE INCH (1100 MEGAPASCALS) MINIMUM TENSILE STRENGTH, SEE BOLT, SHEAR. FOR ITEMS FABRICATED FROM MATERIAL HAVING LESS THAN 160,000 POUNDS PER SQUARE INCH (1100 MEGAPASCALS) MINIMUM TENSILE STRENGTH AND NOT HAVING A CLOSE TOLERANCE, SEE BOLT, MACHINE.
Reference/Part Number
CAGE Information
| Code |
Company |
| 29372 |
ALCOA GLOBAL FASTENERS INC. DBA ALCO |
| 84256 |
AVIBANK MFG. INC. |
| 96906 |
MILITARY STANDARDS PROMULGATED BY MI |
| 78286 |
SIKORSKY AIRCRAFT CORPORATION |
| 80205 |
NATIONAL AEROSPACE STANDARDS COMMITT |
| 80539 |
SPS TECHNOLOGIES LLC DBA AEROSPACE F |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| AASU |
HEAD HEIGHT |
0.126 INCHES MINIMUM AND 0.141 INCHES MAXIMUM |
| AAUR |
GRIP DIAMETER |
0.2483 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM |
| AAJD |
THREAD CLASS |
3A |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| AASA |
THREAD LENGTH |
0.282 INCHES MINIMUM AND 0.333 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
| CSYM |
SURFACE FINISH |
63.0 MICROINCHES GRIP |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASB |
FASTENER LENGTH |
3.606 INCHES MINIMUM AND 3.626 INCHES MAXIMUM |
| MATT |
MATERIAL |
STEEL COMP 4140 OVERALL OR STEEL COMP 4130 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP E4340 OVERALL OR STEEL COMP 6150 OVERALL |
| CSYM |
SURFACE FINISH |
63.0 MICROINCHES BEARING SURFACE OF HEAD |
| ANEE |
GRIP LENGTH |
3.188 INCHES MINIMUM AND 3.204 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
DISHED HEXAGON |
| AATB |
WIDTH BETWEEN FLATS |
0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
| AAUM |
LOCKING FEATURE |
DETENT BALL GRIP |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.076 INCHES MINIMUM FIRST HOLE AND 0.086 INCHES MAXIMUM FIRST HOLE |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
3.506 INCHES MINIMUM FIRST HOLE AND 3.533 INCHES MAXIMUM FIRST HOLE |
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