The Power Pack,hydraulic, cataloged under National Stock Number 4330-01-433-4981, is classified within Federal Supply Class 4330 (Centrifugals, Separators, and Pressure and Vacuum Filters) of the Pumps and Compressors group. The manufacturer of record is Appleton Marine Inc. 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. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-433-4981 |
| Primary Part Number | AMD-1139 |
| Item Name | Power Pack,hydraulic |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Appleton Marine Inc |
| Status | ACTIVE |
| General Characteristics Item Description | INCLUDES MAIN PUMP, FILTRATION/COOLING AUXILLIARY PUMP, COOLER, HYDRAULIC TANK AND RETURN FILTER |
| 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 |
|---|---|
| AMD-1139 PRIMARY | Appleton Marine Inc (USA) |
NSN 4330-01-433-4981 is a Power Pack,hydraulic, manufactured by Appleton Marine Inc, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-433-4981 has 1 manufacturer part number on file: AMD-1139 (Appleton Marine Inc).
3 possible matches (shared part number, not a government interchangeability claim): 4310-01-433-7127, 4330-01-433-8000, 3040-01-436-0721. Verify interchangeability with system specifications before substitution.
Key specifications for AMD-1139: Overall Height: 66.630 INCHES NOMINAL IN; General Characteristics Item Description: INCLUDES MAIN PUMP, FILTRATION/COOLING AUXILLIARY PUMP, COOLER, HYDRAULIC TANK AND RETURN FILTER; Overall Length: 78.810 INCHES NOMINAL IN; Overall Width: 42.880 INCHES NOMINAL IN. 1 specification is 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.