The Valve,regulating,system Pressure, cataloged under National Stock Number 4820-01-186-0595, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Stulz Air Technology Systems, Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Valve,regulating,system Pressure |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Stulz Air Technology Systems, Inc. (CAGE 0B716) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-186-0595 |
| Primary Part Number | SP7842-13 |
| Item Name | Valve,regulating,system Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Stulz Air Technology Systems, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| SP7842-13 | Stulz Air Technology Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| A4AT | 3/2 Design control — primary reference U.S. Government activity |
| 43N3-134 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 4820-01-186-0595 is a Valve,regulating,system Pressure, manufactured by Stulz Air Technology Systems, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-186-0595 has 1 manufacturer part number on file: SP7842-13 (Stulz Air Technology Systems, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-433-8005. Verify interchangeability with system specifications before substitution.
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.