The Diaphragm,actuator Valve,special, cataloged under National Stock Number 4820-01-237-7112, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is General Electric Company. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-237-7112 |
| Primary Part Number | 576E577 PIECE 1 |
| Item Name | Diaphragm,actuator Valve,special |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Style Designator | SPECIAL SHAPED |
| Media for Which Designed | STEAM |
| 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 |
|---|---|
| 575E408 PIECE 8 | General Electric Company (USA) |
| 576E577 PIECE 1 PRIMARY | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 575E408 | D/9 Drawing number reference only General Electric Company |
NSN 4820-01-237-7112 is a Diaphragm,actuator Valve,special, manufactured by General Electric Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-237-7112 has 2 manufacturer part numbers on file: 575E408 PIECE 8 (General Electric Company), 576E577 PIECE 1 (General Electric Company).
Key specifications for 576E577 PIECE 1: Style Designator: SPECIAL SHAPED; Media for Which Designed: STEAM. 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.