The Piston,valve, cataloged under National Stock Number 4820-01-407-2967, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is O. C. Keckley Company. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-407-2967 |
| Primary Part Number | 7007MA |
| Item Name | Piston,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | O. C. Keckley Company |
| Status | ACTIVE |
| Valve Type for Which Designed | PRESSURE REDUCING |
| Valve Model Number for Which Designed | AL67068 SPECIAL 0.750IN. "AA" VALVE IN |
| Valve Size for Which Designed | 0.750 INCHES IN |
| Valve Design Control Activity | 32869 |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 7007MA PRIMARY | O. C. Keckley Company (USA) |
| AL67068 PART 21 | O. C. Keckley Company (USA) |
| Reference | Meaning |
|---|---|
| AL67068 | D/9 Drawing number reference only O. C. Keckley Company |
NSN 4820-01-407-2967 is a Piston,valve, manufactured by O. C. Keckley Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-407-2967 has 2 manufacturer part numbers on file: 7007MA (O. C. Keckley Company), AL67068 PART 21 (O. C. Keckley Company).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-407-2969. Verify interchangeability with system specifications before substitution.
Key specifications for 7007MA: Valve Type for Which Designed: PRESSURE REDUCING; Valve Model Number for Which Designed: AL67068 SPECIAL 0.750IN. "AA" VALVE IN; Valve Size for Which Designed: 0.750 INCHES IN; Valve Design Control Activity: 32869. 5 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.