The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-555-3772, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-555-3772 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | NOT IDENTICAL |
| Second End Thread Class | 3B |
| Body Style | STRAIGHT THRU W/OFFSET |
| Regulation Type | MANUAL SINGLE STAGE |
| First End Thread Class | 3B |
| First End Style Designator | GASKET SEAL |
| End Connection Quantity | 2 |
| Second End Thread Direction | RIGHT-HAND |
| Valve Loading Method | SPRING |
| Second End Style Designator | GASKET SEAL |
| First End Connection Type | THREADED INTERNAL BOSS |
| Surface Treatment | ANODIZE OUTSIDE |
| Material | ALUMINUM ALLOY BODY |
| Media for Which Designed | AIR |
| Second End Connection Type | THREADED INTERNAL BOSS |
| Thread Size and Series/type Designator | 3/4-16 UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END |
| Thread Size and Series/type Designator | 9/16-18 UNIFIED NATIONAL JOINT FINE (UNJF) MODIFIED SECOND END |
| Outlet Pressure Setting | ERR-060 |
| Filter | NOT INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Reference | Meaning |
|---|---|
| 178-0800-550 | 5/2 Secondary reference U.S. Government activity |
| 178-0800-550 | 3/9 Design control — primary reference Mcdonnell Douglas Helicopter Co Inc |
| 178-0800-550 | C/1 Advisory reference — outside the item-of-supply concept The Boeing Company |
NSN 4820-00-555-3772 is a Valve,regulating,fluid Pressure, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-555-3772: First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: NOT IDENTICAL; Second End Thread Class: 3B; Body Style: STRAIGHT THRU W/OFFSET. 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.
NSN 4820-00-555-3772 has DEMIL Code Q. 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.