The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-283-5220, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Meggitt Safety Systems Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-283-5220 |
| Primary Part Number | 40003855-1 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Meggitt Safety Systems Inc |
| Status | ACTIVE |
| Supplementary Features | USED ON AIR BOTTLE AND BRACKET ASSEMBLY,LIFE RAFT RELIEF,CREW COMPARTMENT,ACFT,TYPE C-5B |
| 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 |
|---|---|
| 40003855-1 PRIMARY | Meggitt Safety Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 40003855-1 | 5/9 Secondary reference Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County |
NSN 4820-01-283-5220 is a Valve,regulating,fluid Pressure, manufactured by Meggitt Safety Systems Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-283-5220 has 1 manufacturer part number on file: 40003855-1 (Meggitt Safety Systems Inc).
Key specifications for 40003855-1: Supplementary Features: USED ON AIR BOTTLE AND BRACKET ASSEMBLY,LIFE RAFT RELIEF,CREW COMPARTMENT,ACFT,TYPE C-5B; Special Features: CONSISTS OF: 1 EA PACKING,PRE- FORMED P/N M 25988/1-009; 1 EA SEAT,SPRING,P/N 40003857-1; 1 EA SPRING P/N 40003860-1. 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.