The Assembly,operator,planetary Gear, cataloged under National Stock Number 4820-01-546-7952, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-546-7952 |
| Primary Part Number | 7550479-A29 |
| Item Name | Assembly,operator,planetary Gear |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| G547-0003-A29D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 7550479-A29 PRIMARY | Naval Sea Systems Command (USA) |
| H553-2002 PN 23D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| H5532002-023D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 7550479-A29D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 564-7066816 PN 23D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| G547-0003-A29 | 5/1 Secondary reference U.S. Government activity |
| 564-7066816 PN 23 | 5/1 Secondary reference Naval Sea Systems Command |
| H5532002-023 | 5/1 Secondary reference U.S. Government activity |
| H553-2002 PN 23 | 5/1 Secondary reference U.S. Government activity |
NSN 4820-01-546-7952 is a Assembly,operator,planetary Gear, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-546-7952 has 6 manufacturer part numbers on file: G547-0003-A29D4 (Naval Inventory Control Point Mechanicsburg), 7550479-A29 (Naval Sea Systems Command), H553-2002 PN 23D4 (Naval Inventory Control Point Mechanicsburg), H5532002-023D4 (Naval Inventory Control Point Mechanicsburg), 7550479-A29D4 (Naval Inventory Control Point Mechanicsburg) and 1 more.
Key specifications for 7550479-A29: Criticality Code Justification: FEAT; Special Features: QUALITY ASSURANCE TESTED AND CERTIFIED FOR DEEP SUBMERGENCE SYSTEMS; Part Name Assigned by Controlling Agency: OPERATOR ASSY PLANETARY GEAR FOR TD-2021, 2022. 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.
NSN 4820-01-546-7952 has DEMIL Code D. 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.