The Parts Kit,ball Valve, cataloged under National Stock Number 4820-01-417-9526, 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 2 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-417-9526 |
| Primary Part Number | 211068082 AND 211067922 |
| Item Name | Parts Kit,ball Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| End Item Source | 96169 |
| End Item Name | SUBMARINE |
| 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 |
|---|---|
| 211068082 AND 211067922 PRIMARY | Naval Sea Systems Command (USA) |
| 556-6406957-MRFH-B12/B13 | Naval Sea Systems Command (USA) |
| 556-6406957-MRFH-A12/A13 | Naval Sea Systems Command (USA) |
| 218013521 AND 218013522 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| C791-5701 FN MRFH-A12/A13 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-417-9526 is a Parts Kit,ball Valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-417-9526 has 4 manufacturer part numbers on file: 211068082 AND 211067922 (Naval Sea Systems Command), 556-6406957-MRFH-B12/B13 (Naval Sea Systems Command), 556-6406957-MRFH-A12/A13 (Naval Sea Systems Command), 218013521 AND 218013522 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-418-2143. Verify interchangeability with system specifications before substitution.
Key specifications for 211068082 AND 211067922: End Item Source: 96169; End Item Name: SUBMARINE; End Item Identification: SEAWOLF CLASS SSN. 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.