Part Number
Definition:
A HIGH STRENGTH, 160,000 POUNDS PER SQUARE INCH (1100 MEGAPASCALS) MINIMUM TENSILE STRENGTH EXTERNALLY THREADED FASTENER DESIGNED FOR USE IN APPLICATIONS INVOLVING GREAT SHEAR STRESS. THE HEAD IS DESIGNED TO ACCOMMODATE AN EXTERNAL WRENCH OR DRIVER. 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. THE UNTHREADED PORTION IS OF SPECIFIC 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. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. SEE BOLT, MACHINE AND BOLT, CLEVIS.
CAGE Information
| Code | Company |
|---|---|
| 97499 | BELL HELICOPTER TEXTRON INC. |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AAUR | GRIP DIAMETER | 0.498 INCHES MINIMUM AND 0.499 INCHES MAXIMUM |
| AAZH | HEAD MINOR DIAMETER | 0.772 INCHES MINIMUM |
| AGAV | END ITEM IDENTIFICATION | EMERGENCY NSN - ISIL |
| AASB | FASTENER LENGTH | 2.003 INCHES NOMINAL |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| CQBC | MINIMUM TENSILE STRENGTH | 30900 POUNDS PER SQUARE INCH |
| AASK | HEAD STYLE | SPLINE DRIVE SHEAR HEAD |
| ANEE | GRIP LENGTH | 1.437 INCHES NOMINAL |
| AAJD | THREAD CLASS | 3A |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | INAVY) BOLT, SHEAR |
| AHYM | NOMINAL THREAD DIAMETER | 0.500 INCHES |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASU | HEAD HEIGHT | 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM |
| AASA | THREAD LENGTH | 0.516 INCHES NOMINAL |
| CRTL | CRITICALITY CODE JUSTIFICATION | AGAV |
| FEAT | SPECIAL FEATURES | 125 KSI FSU, 900 DEGREES FAHRENHEIT, EXTERNAL WRENCHING SPLINE DRIVE |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| MATT | MATERIAL | NICKEL ALLOY 718 OVERALL |