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 |
|---|---|
| 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| CQFM | HARDNESS RATING | 51.0 ROCKWELL C MINIMUM OVERALL AND 54.0 ROCKWELL C MAXIMUM OVERALL |
| AATB | WIDTH BETWEEN FLATS | 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-8837 TY 1,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE HEAD |
| CQBC | MINIMUM TENSILE STRENGTH | 260000 POUNDS PER SQUARE INCH |
| AAJD | THREAD CLASS | 3A |
| SFTT | SURFACE TREATMENT | CADMIUM HEAD |
| AHYM | NOMINAL THREAD DIAMETER | 0.500 INCHES |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-8837 TY 1,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE THREADS |
| AASA | THREAD LENGTH | 0.561 INCHES MINIMUM |
| SFTT | SURFACE TREATMENT | CADMIUM THREADS |
| MATT | MATERIAL | STEEL OVERALL |
| AASU | HEAD HEIGHT | 0.281 INCHES NOMINAL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SPS-M-107,FSCM 03680 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| AAUR | GRIP DIAMETER | 0.4982 INCHES MINIMUM AND 0.4991 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.998 INCHES NOMINAL |
| AASK | HEAD STYLE | DOUBLE HEXAGON |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| ANEE | GRIP LENGTH | 1.438 INCHES NOMINAL |