The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-412-8262, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Esi Acquisition Corp Dba Esi Acquisition Corp. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-412-8262 |
| Primary Part Number | 83905-2 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Esi Acquisition Corp Dba Esi Acquisition Corp |
| Status | ACTIVE |
| 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 |
|---|---|
| 83905-2 | Esi Acquisition Corp Dba Esi Acquisition Corp (USA) |
| 83905-2 | Propulsion Controls Engineering (USA) |
| 83905-2 | Portland Valve Llc (USA) |
| Reference | Meaning |
|---|---|
| 83905-2 | 3/2 Design control — primary reference U.S. Government activity |
| 83905 | 5/1 Secondary reference Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator |
NSN 4820-01-412-8262 is a Valve,regulating,fluid Pressure, manufactured by Esi Acquisition Corp Dba Esi Acquisition Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-412-8262 has 3 manufacturer part numbers on file: 83905-2 (Esi Acquisition Corp Dba Esi Acquisition Corp), 83905-2 (Propulsion Controls Engineering), 83905-2 (Portland Valve Llc).
1 possible match (shared part number, not a government interchangeability claim): 6145-01-723-9142. Verify interchangeability with system specifications before substitution.
Key specifications for 83905-2: End Item Identification: VALVE PRESS REGG BTFL 4.00IPS 150PSI CRSBLT CRES. 0 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.