NUT,SELF-LOCKING,SIN,
| FITZ AEROSPACE, LLC | 019L2 |
| SPS TECHNOLOGIES, LLC | 56878 |
| HARVARD INDUSTRIES INC | 72962 |
| KLINES FURNITURE CO INC | 72963 |
| U S ARMY AVIATION AND MISSILE COMMAND | 18876 |
| US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR | 80063 |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| NUT STYLE | SINGLE BALL SEAT, HEXAGON |
| BALL SEAT RADIUS | 0.250 INCHES MINIMUM AND 0.280 INCHES MAXIMUM |
| NUT HEIGHT | 0.330 INCHES MAXIMUM |
| END ITEM IDENTIFICATION | ENGINE, AIRCRAFT TF33-P-3/5/9 (C/EC-135, B-52H);ENGINE, AIRCRAFT TF33-PW-102 (C-135E, EC-135H/K/P);ENGINE, AIRCRAFT, TF-33-P-7 (C-141A/B);CONSOLIDATED TARGETS;HELICOPTER, MH-53E;AIRCRAFT, T-2;HELICOPTER, HH-53H PAVE LOW;AIRCRAFT, STRATOLIFTER C-135;AIRCRAFT, STRATOFORTRESS B-52;AIRCRAFT, PHANTOM F-4 |
| WIDTH ACROSS FLATS | 0.438 INCHES NOMINAL |
| THREAD SERIES | UNF |
| THREAD QUANTITY PER INCH | 28 |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| MATERIAL | STEEL OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| A NUT HAVING ONE CONVEX, SPHERICAL BEARING SURFACE AND 6 FLAT SIDES. ITEMS MAY HAVE A REMOVABLE COLLAR. AN INTEGRAL FEATURE IS INCORPORATED FOR LOCKING ON THE THREADS OF A MATING MEMBER. SEE ALSO NUT (1), SELF-LOCKING, CONE SEAT, HEXAGON. |
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