The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-553-1872, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dh Instruments Inc.. Government technical data includes 2 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. 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 | 4820-01-553-1872 |
| Primary Part Number | 3E4 VCR-V-Q |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dh Instruments Inc. |
| Status | ACTIVE |
| Temp Rating | 15.0 CELSIUS MINIMUM AND 35.0 CELSIUS MAXIMUM DEGC |
| Media for Which Designed | GAS |
| 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 |
|---|---|
| 3E4 VCR-V-Q PRIMARY | Dh Instruments Inc. (USA) |
NSN 4820-01-553-1872 is a Valve,regulating,fluid Pressure, manufactured by Dh Instruments Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-553-1872 has 1 manufacturer part number on file: 3E4 VCR-V-Q (Dh Instruments Inc.).
1 possible match (shared part number, not a government interchangeability claim): 6680-01-724-6623. Verify interchangeability with system specifications before substitution.
Key specifications for 3E4 VCR-V-Q: Temp Rating: 15.0 CELSIUS MINIMUM AND 35.0 CELSIUS MAXIMUM DEGC; Special Features: 157 CM L X 48 CM W X 74.5 CM H CM; Media for Which Designed: GAS. 2 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.