The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-330-5977, 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 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-330-5977 |
| Primary Part Number | 30806998 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Warren Controls, Inc. |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Second End Relationship with First End | IDENTICAL |
| Remote Actuation Method | DIAPHRAGM |
| Body Style | STRAIGHT THRU |
| First End Style Designator | SOCKET W/BRAZING RING |
| Material Document and Classification | UNABLE TO DECODE |
| End Connection Quantity | 2 |
| Valve Loading Method | SPRING |
| First End Connection Type | UNTHREADED INTERNAL PIPE |
| Material | NICKEL ALLOY STEM |
| Material | COPPER ALLOY 922 BODY |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE |
| 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 |
|---|---|
| 30806998 PRIMARY | Warren Controls, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 436 MK I 30806998 | 5/9 Secondary reference Warren Controls, Inc. |
| 30806998 436 MK I | 5/9 Secondary reference Warren Controls, Inc. |
NSN 4820-01-330-5977 is a Valve,regulating,fluid Pressure, manufactured by Warren Controls, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-330-5977 has 1 manufacturer part number on file: 30806998 (Warren Controls, Inc.).
Key specifications for 30806998: Flow Control Device: DISK; Second End Relationship with First End: IDENTICAL; Remote Actuation Method: DIAPHRAGM; Body Style: STRAIGHT THRU. 13 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.