The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-133-3781, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Warren Controls, Inc.. Government technical data includes 20 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-133-3781 |
| Primary Part Number | 30806005 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Warren Controls, Inc. |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Valve Stem Design | DOUBLE SEAT |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| Regulation Type | AUTOMATIC DOUBLE STAGE |
| First End Style Designator | SOCKET W/BRAZING RING |
| Temp Rating | 100.0 FAHRENHEIT MAXIMUM DEGF |
| Criticality Code Justification | FEAT |
| Material Document and Classification | UNABLE TO DECODE |
| End Connection Quantity | 2 |
| Outlet Pressure Range | 50.0 TO 100.0 CAMERA MOUNT |
| Valve Loading Method | SPRING |
| First End Connection Type | UNTHREADED INTERNAL PIPE |
| First End Nominal Pipe Size Accommodated | 4.000 INCHES IN |
| Material | BRONZE SEAT |
| Material | NICKEL ALLOY STEM |
| Material | RUBBER FLOW CONTROL DEVICE |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING |
| Media for Which Designed | WATER, SALT |
| 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 | Y |
| Part Number | Manufacturer |
|---|---|
| 30806005 PRIMARY | Warren Controls, Inc. (USA) |
| 40399-403 PRIMARY | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 40399-04 50T 10 | C/1 Advisory reference — outside the item-of-supply concept Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
| 40399-4 50 TO 100PSI | 5/9 Secondary reference Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
| 436AND30806262 50T100 PSI | 5/9 Secondary reference Warren Controls, Inc. |
| 30806262 | D/9 Drawing number reference only Warren Controls, Inc. |
| 30806262REVD 50T100PSI | 5/9 Secondary reference Warren Controls, Inc. |
NSN 4820-01-133-3781 is a Valve,regulating,fluid Pressure, manufactured by Warren Controls, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-133-3781 has 2 manufacturer part numbers on file: 30806005 (Warren Controls, Inc.), 40399-403 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-198-0829. Verify interchangeability with system specifications before substitution.
Key specifications for 30806005: Flow Control Device: DISK; Valve Stem Design: DOUBLE SEAT; Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU. 20 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.