The Ladder,fire,extension-a-Folding, cataloged under National Stock Number 4210-01-663-4152, is classified within Federal Supply Class 4210 (Firefighting Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Duo-Safety Ladder Corporation. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4210-01-663-4152 |
| Primary Part Number | 6-12-35-B |
| Item Name | Ladder,fire,extension-a-Folding |
| FSC / FSG | 4210 / 42 — Firefighting Equipment |
| Manufacturer | Duo-Safety Ladder Corporation |
| Status | ACTIVE |
| Material | ALUMINUM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6-12-35-B PRIMARY | Duo-Safety Ladder Corporation (USA) |
| Reference | Meaning |
|---|---|
| 4099306 | 7/2 Vendor item drawing reference Oshkosh Defense Llc |
NSN 4210-01-663-4152 is a Ladder,fire,extension-a-Folding, manufactured by Duo-Safety Ladder Corporation, classified under FSC 4210, Firefighting Equipment. Status: active.
NSN 4210-01-663-4152 has 1 manufacturer part number on file: 6-12-35-B (Duo-Safety Ladder Corporation).
Key specifications for 6-12-35-B: Overall Height: 3.25 INCHES NOMINAL IN; Overall Length: 145.75 INCHES NOMINAL IN; Overall Width: 19.75 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: LADDER. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.