The Register,air, cataloged under National Stock Number 4520-01-504-9997, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 6 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-504-9997 |
| Primary Part Number | 512-7067212-F24 |
| Item Name | Register,air |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Shape | SQUARE |
| Frame Removability | ANY ACCEPTABLE |
| Deflector Blade Operating Method | ANY ACCEPTABLE |
| Material | STEEL CORROSION RESISTING |
| Blade Vertical Surface Axis Position | ANY ACCEPTABLE |
| Grille Quantity | 1 |
| 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 |
|---|---|
| 512-7067212-F24 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| RV10-9X9 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| H643-1520-F24 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4520-01-504-9997 is a Register,air, manufactured by Naval Sea Systems Command, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-504-9997 has 1 manufacturer part number on file: 512-7067212-F24 (Naval Sea Systems Command).
Key specifications for 512-7067212-F24: Shape: SQUARE; Overall Length: 9.000 INCHES NOMINAL IN; Overall Width: 9.000 INCHES NOMINAL IN; Frame Removability: ANY ACCEPTABLE. 6 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.