The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-482-9825, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 4 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-482-9825 |
| Primary Part Number | 7383858-A338D7 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Material | NICKEL AND ALUMINUM AND COPPER ALLOY BODY |
| Media for Which Designed | AIR |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PRODURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 7383858-A338D7 | Naval Inventory Control Point Mechanicsburg (USA) |
| NA52712D7 | Naval Inventory Control Point Mechanicsburg (USA) |
| H547-0001-A338D7 | Naval Inventory Control Point Mechanicsburg (USA) |
| SA656MK3D4D7 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| H547-0001-A338 | 5/1 Secondary reference U.S. Government activity |
| 7383858-A338 | 3/1 Design control — primary reference Naval Sea Systems Command |
| NA52712 | 5/1 Secondary reference Hale Hamilton (valves) Ltd Div Cad Uxbridge |
| SA656MK3D4 | 5/1 Secondary reference Hale Hamilton (valves) Ltd Div Cad Uxbridge |
NSN 4820-01-482-9825 is a Valve,regulating,fluid Pressure, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-482-9825 has 4 manufacturer part numbers on file: 7383858-A338D7 (Naval Inventory Control Point Mechanicsburg), NA52712D7 (Naval Inventory Control Point Mechanicsburg), H547-0001-A338D7 (Naval Inventory Control Point Mechanicsburg), SA656MK3D4D7 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 7383858-A338D7: Criticality Code Justification: ZZZY; Special Features: QUALITY ASSURANCE TESTED AND CERTIFIED FOR DEEP SUBMERGENCE SYSTEMS; FLOW RATE (DEPENDENT ON AMB. PRESS.) 15-250 SCFM; MINIMUM INLET PRESSURE 350PSIG;SUPPLY AIR TEMPERATURE RANGE 0-122F; DESIGN INLET PRESSURE 825 PSIG; DESIGN OUTLET PRESSURE 825 PSIG; NORMAL INLET PRESSURE 700 PSIG + OR - 14PSIG; NORMAL SET OUTLET PRESSURE 2.5 PSIG AT 1 ATM; THIS VALVE MAINTAINS AIR PRESSURE INTHE STOLE CHARGING VALVE CONNECTION (SEPERATE ASSEMBLY) AT A POSITIVE DIFFERENTIAL TO THE SURROUNDING AMBIENT PRESSURE WHEN DRIVEN BY SEA WATER TO DEPTHS WITHIN THE ABOVE STATED OUTLET PRESSURE RANGE.; Part Name Assigned by Controlling Agency: HOOD INFLATION SYSTEM (SHT.2) CONTROLLER; Material: NICKEL AND ALUMINUM AND COPPER ALLOY BODY. 4 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.
NSN 4820-01-482-9825 has DEMIL Code B. 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.