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 |
| 80205 |
NATIONAL AEROSPACE STANDARDS COMMITT |
| 88044 |
AERONAUTICAL STANDARDS GROUP DEPT OF |
| 81349 |
MILITARY SPECIFICATIONS PROMULGATED |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| MATT |
MATERIAL |
STEEL COMP 4140 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 4037 OVERALL OR STEEL COMP 4130 OVERALL |
| MATT |
MATERIAL |
STEEL COMP 4140 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 4037 OVERALL OR STEEL COMP 4130 OVERALL |
| AAUR |
GRIP DIAMETER |
0.4986 INCHES MINIMUM AND 0.4991 INCHES MAXIMUM |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
2.781 INCHES MINIMUM FIRST HOLE AND 2.813 INCHES MAXIMUM FIRST HOLE |
| ANEE |
GRIP LENGTH |
2.172 INCHES MINIMUM AND 2.204 INCHES MAXIMUM |
| AAJD |
THREAD CLASS |
3A |
| AAUB |
HOLE DIAMETER |
0.070 INCHES NOMINAL |
| CSYM |
SURFACE FINISH |
63.0 MICROINCHES GRIP |
| AHYM |
NOMINAL THREAD DIAMETER |
0.500 INCHES |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.749 INCHES MINIMUM AND 0.828 INCHES MAXIMUM |
| AASU |
HEAD HEIGHT |
0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM |
| ASXK |
HOLE QUANTITY |
1 |
| CSYM |
SURFACE FINISH |
63.0 MICROINCHES BEARING SURFACE OF HEAD |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| CQBC |
MINIMUM TENSILE STRENGTH |
125000 POUNDS PER SQUARE INCH |
| AASK |
HEAD STYLE |
HEXAGON |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.106 INCHES NOMINAL FIRST HOLE |
| CRHC |
HOLE CONFIGURATION STYLE |
HEXAGON FLATS |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416,TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| BQDM |
HOLE TYPE |
DRILLED |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR MIL-S-6098 MIL SPEC 3RD MATERIAL RESPONSE OVERALL OR MIL-S-5626 MIL SPEC 5TH MATERIAL RESPONSE OVERALL OR AMS 6300 ASSN STD 4TH MATERIAL RESPONSE OVERALL OR MIL-S-6758 MIL SPEC 6TH MATERIAL RESPONSE OVERALL |
| CMLP |
THREAD QUANTITY PER INCH |
20 |
| CQFM |
HARDNESS RATING |
26.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| AATB |
WIDTH BETWEEN FLATS |
0.740 INCHES MINIMUM AND 0.752 INCHES MAXIMUM |
| AASB |
FASTENER LENGTH |
2.953 INCHES MINIMUM AND 3.000 INCHES MAXIMUM |
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