|
|
|
National Stock Number:
3950-00-922-8737
Federal Supply Class:
3950
National Item Identification Number:
009228737
Description:
DERRICK,STIFF LEG
Detail:
A DERRICK CONSISTING OF A SPAR, MAST, OR A-FRAME SET ON END AND USUALLY SUPPORTED AT THE BOTTOM BY TWO HORIZONTAL SPARS OR SILLS, WITH INCLINED BEAMS RUNNING FROM END OF SILLS TO MAST TO FORM A TRIANGLE. A BOOM IS FASTENED TO THE LOWER END OF THE MAST OR OF THE SILLS. THE BOOM IS SO ARRANGED THAT IT MAY BE RAISED OR LOWERED AT DIFFERENT ANGLES OR SWUNG HORIZONTALLY. THE HOISTING UNIT IS GENERALLY NOT AN INTEGRAL PART OF THIS DEVICE BUT MAY BE LOCATED ANY DISTANCE FROM THE DERRICK.
|
Manufacturer Information:
| 1109659 | 80091 | NAVAL FACILITIES ENGINEERING COMMAND | | MIL-D-82062 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
|
Techincal Specification:
| GENERAL CHARACTERISTICS ITEM DESCRIPTION | 100 LG TON CAPACITY,C/O A NONROTATING THREE PIECE BOOM,ADJUSTABLE FORREACH,84 FT LG,W/A 15 FT BOOM EXTENSION,CARRYING BOTH THE MAIN HOOK BLOCKLINE SHEAVE AND THE AUXILIARY HOOK LINE SHEAVE,A 41 FT BOOM BACK STAYSTRUT,A BACK STAY ANCHORAGE,AN A-FRAME BOOM PEDESTAL WHICH EXTENDS 31 FT6 IN. ABOVE DECK,A FRONT AND REAR PEDESTAL BASE,A MAIN HOOK BLOCK SYSTEMFOR 12 PART,1-1/8 IN. DIA WIRE ROPE,AN AUXILIARY HOOK SYSTEM,W/OVERHAULBALL FOR SINGLE-PART 7/8 IN. DIA WIRE ROPE,A BOOM FALL BLOCK SYSTEM FROMTHE BACK STAY ANCHORAGE W/A 9 PART,1-1/8 IN. DIA WIRE ROPE,W/ADDITIONALCOMPONENTS AND PARTS FOR MTG TO THE BARGE AND FOR THE COMPLETE OPERATION OFTHE DERRICK,USED ON A 10 BY 30 FT SINGLE TIER PONTOON BARGE,NAVFAC DWGS1109659 THROUGH 1109694 AND 1110553 AND 1110554 | | SPECIFICATION/STANDARD DATA | 81349-MIL-D-82062 GOVERNMENT SPECIFICATION |
|
|