SL Series security covers feature a permanent plexiglass window for easy equipment viewing. Secure and cost-effective - available in 1, 2, and 3 space sizes, 1” deep. Key specifications include material: ALUMINUM PLATES, core_width: 0.750 INCHES NOMINAL IN, core_height: 7.500 INCHES NOMINAL IN, core_length: 17.000 INCHES NOMINAL IN, power_source: EXTERNAL, inclosure_type: ENCASED.
This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5895-01-499-4586, indicating validated use in U.S. government and defense logistics supply chains.
Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.
| material | ALUMINUM PLATES |
| core_width | 0.750 INCHES NOMINAL IN |
| core_height | 7.500 INCHES NOMINAL IN |
| core_length | 17.000 INCHES NOMINAL IN |
| power_source | EXTERNAL |
| inclosure_type | ENCASED |
| style_designator | FINNED "S" TUBE |
| terminal_location | FRONT |
| heat_transfer_method | INDIRECT |
| end_item_identification | AN/BSR-1 SUBSURFACE RECEIVER (SSRS) |
| terminal_type_and_quantity | 3 JACK |
| part_name_assigned_by_controlling_agency | PASSIVE DIRECT BOX |
| NSN | 5895-01-499-4586 |
| TERMINAL LOCATION | FRONT |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | PASSIVE DIRECT BOX |
| SPECIAL FEATURES | SL-1 STRAIGHTLINE PASSIVE DIRECT BOX ALLOWS FOR HIGH IMPEDANCE INPUT DIRECTLY INTO A LOW IMPEDANCE SYSTEM. UTILIZES THE IMT-1 LINE MATCHING TRANSFORMER. ALSO HAS A GROUND LIFT SWITCH FOR BUZZ-FREE OPERATION. |
| END ITEM IDENTIFICATION | AN/BSR-1 SUBSURFACE RECEIVER (SSRS) |
| INCLOSURE TYPE | ENCASED |
| TERMINAL TYPE AND QUANTITY | 3 JACK |
| POWER SOURCE | EXTERNAL |
| TERMINAL LOCATION | FRONT |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | PASSIVE DIRECT BOX |
| SPECIAL FEATURES | SL-1 STRAIGHTLINE PASSIVE DIRECT BOX ALLOWS FOR HIGH IMPEDANCE INPUT DIRECTLY INTO A LOW IMPEDANCE SYSTEM. UTILIZES THE IMT-1 LINE MATCHING TRANSFORMER. ALSO HAS A GROUND LIFT SWITCH FOR BUZZ-FREE OPERATION. |