The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-086-9780, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Elsag Bailey Inc. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-086-9780 |
| Primary Part Number | 5318451A2 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Elsag Bailey Inc |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Second End Relationship with First End | IDENTICAL |
| Body Style | TEE ANGLE |
| Regulation Type | AUTOMATIC SINGLE STAGE |
| Third End Relationship with Preceding Ends | IDENTICAL WITH FIRST END |
| First End Style Designator | PLAIN |
| End Connection Quantity | 4 |
| Valve Loading Method | SPRING |
| Surface Treatment | PAINT OUTSIDE |
| Fourth End Relationship with Preceding Ends | IDENTICAL WITH FIRST END |
| Material | RUBBER SYNTHETIC PACKING |
| Material | COPPER ALLOY AND RUBBER SYNTHETIC FLOW CONTROL DEVICE |
| Material | ALUMINUM ALLOY BODY |
| Material | STEEL CORROSION RESISTING STEM |
| Media for Which Designed | AIR |
| Thread Size and Series/type Designator | 0.250-18 NPT FIRST END |
| Filter | NOT INCLUDED |
| 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 |
|---|---|
| 5318451A2 PRIMARY | Elsag Bailey Inc (USA) |
| Reference | Meaning |
|---|---|
| 5318451A1 | 5/9 Secondary reference Elsag Bailey Inc |
| 164A-1 | C/1 Advisory reference — outside the item-of-supply concept Fisher Controls Co Inc |
| 5318451A1 | 5/9 Secondary reference Masco Corporation Dba Masco |
| 164A-1 250PSI.2 | C/1 Advisory reference — outside the item-of-supply concept Fisher Controls Co Inc |
| 5318451A1 | 5/9 Secondary reference Industrial Service and Supply, Inc |
NSN 4820-00-086-9780 is a Valve,regulating,fluid Pressure, manufactured by Elsag Bailey Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-086-9780 has 1 manufacturer part number on file: 5318451A2 (Elsag Bailey Inc).
Key specifications for 5318451A2: Flow Control Device: DISK; Second End Relationship with First End: IDENTICAL; Body Style: TEE ANGLE; Regulation Type: AUTOMATIC SINGLE STAGE. 17 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.