The Ladder,extension, cataloged under National Stock Number 5440-01-323-9185, is classified within Federal Supply Class 5440 (Scaffolding Equipment and Concrete Forms) of the Prefabricated Structures and Scaffolding group. The manufacturer of record is Louisville Ladder Inc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5440-01-323-9185 |
| Primary Part Number | WE0628 W/E15 |
| Item Name | Ladder,extension |
| FSC / FSG | 5440 / 54 — Scaffolding Equipment and Concrete Forms |
| Manufacturer | Louisville Ladder Inc |
| Status | ACTIVE |
| Length | 28.000 FEET NOMINAL FT |
| Supplementary Features | THE LADDER MUST BE A LAMINATED 28 FT WOOD EXTENSION TYPE,BE DUTY RATEDFOR 300 LBS AND FOLD AWAY MODIFIED LADDER HOOKS THAT WILL FIT THE 1 1/4 INCH DIA. HATCH/VENTILATOR LADDER BAR LBS |
| Section Quantity | 2 |
| Functional Description | REQUIREMENT EXISTS AT THE REMOTE RADAR HEAD (RRH) SITE DURING THE REMOVE AND REPLACE TASKS FOR THE BEACON ANTENNA,AN EXTENSION LADDER EQUIPPED WITH LADDER HOOKS IS REQUIRED TO EXTEND FROM RRH SERVICE LIFT (AT UPPER LIMITS) TO RADOME ZENITH AND BEYOND,THE LADDER HOOKS MUST ENGAGE THE HATCH/VENTILATOR LADDER SUPPORT BAR WHEN THE HATCH IS IN THE CLOSED POSITION; WHEN THE HATCH/VENTLATOR IS OPEN THE LADDER MUST EXTEND THROUGH THE HATCH OPENING |
| Material | WOOD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 77C724271G2 | Lockheed Martin Corporation Div Rms (USA) |
| WE0628 W/E15 PRIMARY | Louisville Ladder Inc (USA) |
| Reference | Meaning |
|---|---|
| WE0628 W/E15 | 3/9 Design control — primary reference Emerson Electric Co Louisville Ladder Div |
NSN 5440-01-323-9185 is a Ladder,extension, manufactured by Louisville Ladder Inc, classified under FSC 5440, Scaffolding Equipment and Concrete Forms. Status: active.
NSN 5440-01-323-9185 has 2 manufacturer part numbers on file: 77C724271G2 (Lockheed Martin Corporation Div Rms), WE0628 W/E15 (Louisville Ladder Inc).
Key specifications for WE0628 W/E15: Length: 28.000 FEET NOMINAL FT; Supplementary Features: THE LADDER MUST BE A LAMINATED 28 FT WOOD EXTENSION TYPE,BE DUTY RATEDFOR 300 LBS AND FOLD AWAY MODIFIED LADDER HOOKS THAT WILL FIT THE 1 1/4 INCH DIA. HATCH/VENTILATOR LADDER BAR LBS; Section Quantity: 2; Functional Description: REQUIREMENT EXISTS AT THE REMOTE RADAR HEAD (RRH) SITE DURING THE REMOVE AND REPLACE TASKS FOR THE BEACON ANTENNA,AN EXTENSION LADDER EQUIPPED WITH LADDER HOOKS IS REQUIRED TO EXTEND FROM RRH SERVICE LIFT (AT UPPER LIMITS) TO RADOME ZENITH AND BEYOND,THE LADDER HOOKS MUST ENGAGE THE HATCH/VENTILATOR LADDER SUPPORT BAR WHEN THE HATCH IS IN THE CLOSED POSITION; WHEN THE HATCH/VENTLATOR IS OPEN THE LADDER MUST EXTEND THROUGH THE HATCH OPENING. 5 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.