NIIN Output Data
NIIN:
NSN:
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 |
| 80539 |
SPS TECHNOLOGIES LLC DBA AEROSPACE F |
| 96906 |
MILITARY STANDARDS PROMULGATED BY MI |
| 80205 |
NATIONAL AEROSPACE STANDARDS COMMITT |
| 84256 |
AVIBANK MFG. INC. |
| 78286 |
SIKORSKY AIRCRAFT CORPORATION |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
MIL-B-83050 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
MIL-B-83050 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| CMLP |
THREAD QUANTITY PER INCH |
24 |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| AASB |
FASTENER LENGTH |
2.228 INCHES MINIMUM AND 2.248 INCHES MAXIMUM |
| AAUR |
GRIP DIAMETER |
0.3108 INCHES MINIMUM AND 0.3117 INCHES MAXIMUM |
| AAJD |
THREAD CLASS |
3A |
| CSYM |
SURFACE FINISH |
63.0 MICROINCHES GRIP |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASU |
HEAD HEIGHT |
0.157 INCHES MINIMUM AND 0.172 INCHES MAXIMUM |
| CQFM |
HARDNESS RATING |
36.0 ROCKWELL C MINIMUM OVERALL AND 41.0 ROCKWELL C MAXIMUM OVERALL |
| MATT |
MATERIAL |
STEEL OVERALL |
| ANEE |
GRIP LENGTH |
1.750 INCHES MINIMUM AND 1.766 INCHES MAXIMUM |
| CSYM |
SURFACE FINISH |
63.0 MICROINCHES BEARING SURFACE OF HEAD |
| AATB |
WIDTH BETWEEN FLATS |
0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |
| AASA |
THREAD LENGTH |
0.311 INCHES MINIMUM AND 0.378 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
DISHED HEXAGON |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416 TY 2 CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
2.113 INCHES MINIMUM FIRST HOLE AND 2.143 INCHES MAXIMUM FIRST HOLE |
| AHYM |
NOMINAL THREAD DIAMETER |
0.312 INCHES |
| FEAT |
SPECIAL FEATURES |
W/RETAINING ELEMENT ON SHANK |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.076 INCHES MINIMUM FIRST HOLE AND 0.086 INCHES MAXIMUM FIRST HOLE |
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