The Control Diaphragm, cataloged under National Stock Number 4820-01-044-5766, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives. Government technical data includes 1 specification, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-044-5766 |
| Primary Part Number | 14568-19 |
| Item Name | Control Diaphragm |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF 2 EA P/N 4771-8,SPRING GUIDE,2 EA P/N 3821-45,DIAPHRAGM DISK,4 EA P/N 12197-2,DIAPHRAGM,2 EA P/N 4551-3,VENT RING,2 EA P/N 4513-6,INNER RING,2 EA P/N 4551-6,SPACER,2 EA P/N 12197-3,DIAPHRAGM,1 EA P/N 4551-1,VENT RING,1 EA P/N 4551-5,CENTER SPACER,1 EA P/N 4551-7,BOTTOM SPACER,1 EA P/N 2938-1,O-RING,1 EA P/N 14568-44,STUD,1 EA P/N 4551-86,SPACER,1 EA,LOCKWASHER,0.250 IN.ID,1 EA,NUT,HEXAGON,0.250-28 THD SIZE IN |
| 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 |
|---|---|
| 14568-19 PRIMARY | Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA) |
NSN 4820-01-044-5766 is a Control Diaphragm, manufactured by Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-044-5766 has 1 manufacturer part number on file: 14568-19 (Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives).
Key specifications for 14568-19: General Characteristics Item Description: CONSISTS OF 2 EA P/N 4771-8,SPRING GUIDE,2 EA P/N 3821-45,DIAPHRAGM DISK,4 EA P/N 12197-2,DIAPHRAGM,2 EA P/N 4551-3,VENT RING,2 EA P/N 4513-6,INNER RING,2 EA P/N 4551-6,SPACER,2 EA P/N 12197-3,DIAPHRAGM,1 EA P/N 4551-1,VENT RING,1 EA P/N 4551-5,CENTER SPACER,1 EA P/N 4551-7,BOTTOM SPACER,1 EA P/N 2938-1,O-RING,1 EA P/N 14568-44,STUD,1 EA P/N 4551-86,SPACER,1 EA,LOCKWASHER,0.250 IN.ID,1 EA,NUT,HEXAGON,0.250-28 THD SIZE IN. 1 specification is 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.