The Regulator,thermostatic Temperatu, cataloged under National Stock Number 4820-01-571-7909, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Danfoss Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-571-7909 |
| Primary Part Number | 077B6138 |
| Item Name | Regulator,thermostatic Temperatu |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Danfoss Inc |
| Status | ACTIVE |
| Mounting Method | FLANGE |
| Capillary Tube Length | 4.300 INCHES NOMINAL IN |
| Thermostat Type | COIL SPRING BIMETALLIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4820-01-571-7909 is a Regulator,thermostatic Temperatu, manufactured by Danfoss Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-571-7909 has 2 manufacturer part numbers on file: HSA000538 (Nqea Marine Safety Pty Ltd), 077B6138 (Danfoss Inc).
Key specifications for 077B6138: Mounting Method: FLANGE; Capillary Tube Length: 4.300 INCHES NOMINAL IN; Thermostat Type: COIL SPRING BIMETALLIC. 3 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.