The Valve,regulating,temperature, cataloged under National Stock Number 4820-00-276-8997, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Schneider Electric Systems Usa Inc. Government technical data includes 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-276-8997 |
| Primary Part Number | E12 TYPE L 1/2 IN |
| Item Name | Valve,regulating,temperature |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Schneider Electric Systems Usa Inc |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Two-Way Valve Action | DIRECT ACTING |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| First End Style Designator | SOCKET W/BRAZING RING |
| Bulb Length | 9.812 INCHES NOMINAL IN |
| Bulb Diameter | 1.562 INCHES NOMINAL IN |
| End Connection Quantity | 2 |
| Capillary Tube Length | 120.000 INCHES NOMINAL IN |
| Specification/standard Data | 81349-MIL-DTL-3155 GOVERNMENT SPECIFICATION |
| First End Connection Type | UNTHREADED INTERNAL TUBE |
| Temp Adjustability | ADJUSTABLE |
| Thermostatic Element | DUCT TYPE |
| First End Outside Diameter Tube Accommodated | 1.900 INCHES NOMINAL IN |
| Material | COPPER ALLOY BODY |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | STEEL CORROSION RESISTING SEAT |
| Material | STEEL BULB |
| Furnished Items | BRAZING RING |
| 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 |
|---|---|
| E12 TYPE L 1/2 IN | Schneider Electric Systems Usa Inc (USA) |
| Reference | Meaning |
|---|---|
| MIL-V-3555 | 5/9 Secondary reference U.S. Government activity |
| MIL-DTL-3155 | 4/1 Identification reference U.S. Government activity |
NSN 4820-00-276-8997 is a Valve,regulating,temperature, manufactured by Schneider Electric Systems Usa Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-276-8997 has 1 manufacturer part number on file: E12 TYPE L 1/2 IN (Schneider Electric Systems Usa Inc).
Key specifications for E12 TYPE L 1/2 IN: Flow Control Device: DISK; Two-Way Valve Action: DIRECT ACTING; Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU. 19 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.