The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-325-1453, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Matheson Gas Products Inc Dba (foreign Parent Is Nippon Sanso Corporation, Tokyo, Japan). Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-325-1453 |
| Primary Part Number | 8DF-580 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Matheson Gas Products Inc Dba (foreign Parent Is Nippon Sanso Corporation, Tokyo, Japan) |
| Status | ACTIVE |
| Material | COPPER ALLOY BODY |
| 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 |
|---|---|
| 8DF-580 PRIMARY | Matheson Gas Products Inc Dba (foreign Parent Is Nippon Sanso Corporation, Tokyo, Japan) (USA) |
| 516-6295520-3 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| MODEL 8DF-580W/ | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4820-01-325-1453 is a Valve,regulating,fluid Pressure, manufactured by Matheson Gas Products Inc Dba (foreign Parent Is Nippon Sanso Corporation, Tokyo, Japan), classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-325-1453 has 2 manufacturer part numbers on file: 8DF-580 (Matheson Gas Products Inc Dba (foreign Parent Is Nippon Sanso Corporation, Tokyo, Japan)), 516-6295520-3 (Huntington Ingalls Inc Div Newport News Shipbuilding).
Key specifications for 8DF-580: Special Features: WITH FLOWMETER; End Item Identification: DRY DECK SHELTER PORTABLE CALIBRATION KIT FOR PARTIAL O2 AND CO2 MONITORS; Material: COPPER ALLOY BODY. 1 specification is 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.