The Stepladder, cataloged under National Stock Number 5440-01-233-3519, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5440-01-233-3519 |
| Primary Part Number | AP1005 |
| Item Name | Stepladder |
| FSC / FSG | 5440 / 54 — Scaffolding Equipment and Concrete Forms |
| Manufacturer | Louisville Ladder Inc |
| Status | ACTIVE |
| Distance From Floor to Platform Top | 5.000 FEET NOMINAL FT |
| Height | 7.000 FEET NOMINAL FT |
| Platform Type | WORK |
| Material | ALUMINUM |
| Crosspiece Type | STEP |
| 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 |
|---|---|
| AP1005 PRIMARY | Louisville Ladder Inc (USA) |
| 77C720157G1 | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 77C720157P1 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms |
| 77C720157 | D/9 Drawing number reference only Lockheed Martin Corporation Div Rms |
| AP1005 | 3/9 Design control — primary reference Emerson Electric Co Louisville Ladder Div |
NSN 5440-01-233-3519 is a Stepladder, manufactured by Louisville Ladder Inc, classified under FSC 5440, Scaffolding Equipment and Concrete Forms. Status: active.
NSN 5440-01-233-3519 has 2 manufacturer part numbers on file: AP1005 (Louisville Ladder Inc), 77C720157G1 (Lockheed Martin Corporation Div Rms).
Key specifications for AP1005: Distance From Floor to Platform Top: 5.000 FEET NOMINAL FT; Height: 7.000 FEET NOMINAL FT; Special Features: KNEE GUARD STANDS APPRX TWO FOOT OVER PLATFORM;PLATFORM GUARD INCLUDED; Platform Type: WORK. 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.