The Air Conditioner, cataloged under National Stock Number 4120-01-445-3280, is classified within Federal Supply Class 4120 (Air Conditioning Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Topp Construction Services, Inc. Dba Topp Portable Air. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4120-01-445-3280 |
| Primary Part Number | MOB-42-HPEH |
| Item Name | Air Conditioner |
| FSC / FSG | 4120 / 41 — Air Conditioning Equipment |
| Manufacturer | Topp Construction Services, Inc. Dba Topp Portable Air |
| Status | ACTIVE |
| 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 |
|---|---|
| MOB-42-HPEH PRIMARY | Topp Construction Services, Inc. Dba Topp Portable Air (USA) |
| Reference | Meaning |
|---|---|
| MOB-42 | 5/9 Secondary reference Topp Construction Services, Inc. Dba Topp Portable Air |
| MOB-42-HP | 5/9 Secondary reference Topp Construction Services, Inc. Dba Topp Portable Air |
NSN 4120-01-445-3280 is a Air Conditioner, manufactured by Topp Construction Services, Inc. Dba Topp Portable Air, classified under FSC 4120, Air Conditioning Equipment. Status: active.
NSN 4120-01-445-3280 has 1 manufacturer part number on file: MOB-42-HPEH (Topp Construction Services, Inc. Dba Topp Portable Air).
Key specifications for MOB-42-HPEH: Special Features: GSA APPLIANCE & SERVICE ACQUISITION PROGRAM (ASAP) ITEM; EFFECTIVE MAY 1 1998, ITEM WILL BE AVAILABLE UNDER GSA MULTIPLE AWARD SCHEDULE 41 PART I. 0 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.