The Support,power Unit, cataloged under National Stock Number 2520-00-355-4183, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Support,power Unit |
| FSC / FSG | 2520 — Vehicular Power Transmission Components (FSG 25) |
| Manufacturers | Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (CAGE 13841) |
| Parameter | Value |
|---|---|
| NSN | 2520-00-355-4183 |
| Primary Part Number | A3053A |
| Item Name | Support,power Unit |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| A3053A PRIMARY | Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA) |
| A3053B | Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA) |
| Reference | Meaning |
|---|---|
| 471944 | 5/9 Secondary reference Wabco Construction and Mining Equipment Group Indianapolis Plant an American Standard Inc Co |
| A3053B | 5/9 Secondary reference U.S. Government activity |
| A3053A | 5/9 Secondary reference U.S. Government activity |
NSN 2520-00-355-4183 is a Support,power Unit, manufactured by Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp., classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-00-355-4183 has 2 manufacturer part numbers on file: A3053A (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.), A3053B (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.).
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 2520-00-355-4183 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.