The Valve Assembly,manifold, cataloged under National Stock Number 4820-01-415-3220, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-415-3220 |
| Item Name | Valve Assembly,manifold |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Valve Quantity | 8 |
| Body Material | COPPER ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 208-4325303 ASS | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 208-4325303 ASSY 99 | 3/2 Design control — primary reference U.S. Government activity |
| 6553-255 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
| 4325303 | D/9 Drawing number reference only U.S. Government activity |
| 6553-255 ASSY 99 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4820-01-415-3220 is a Valve Assembly,manifold, classified under FSC 4820, Valves, Nonpowered. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4820-01-415-8298. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-415-3220: Valve Quantity: 8; Body Material: COPPER ALLOY; End Item Identification: NIMITZ CLASS CVN. 2 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.