The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-124-5805, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Argo Turboserve Corporation Div Argo Turboserve Corp.. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-00-124-5805 |
| Primary Part Number | 010274-044-779 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Argo Turboserve Corporation Div Argo Turboserve Corp. |
| Status | ACTIVE |
| Outside Diameter | 17.500 INCHES NOMINAL IN |
| Style Designator | FLAT |
| Material Thickness | 0.125 INCHES NOMINAL IN |
| Bolt Hole Quantity | 36 |
| Bolt Circle Diameter | 16.955 INCHES NOMINAL IN |
| Material | RUBBER CHLOROPRENE CLASS CR |
| Hole Diameter | 0.455 INCHES NOMINAL 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 |
|---|---|
| 010274-044-779 PRIMARY | Argo Turboserve Corporation Div Argo Turboserve Corp. (USA) |
| Reference | Meaning |
|---|---|
| 010274-044-779 | 3/9 Design control — primary reference Dresser Industries Inc Masoneilan North American Opns Dresser Valve and Controls Div |
| 010274-023-686 | 5/9 Secondary reference Dresser Industries Inc Masoneilan North American Opns Dresser Valve and Controls Div |
NSN 4820-00-124-5805 is a Diaphragm,valve,flat, manufactured by Argo Turboserve Corporation Div Argo Turboserve Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-124-5805 has 1 manufacturer part number on file: 010274-044-779 (Argo Turboserve Corporation Div Argo Turboserve Corp.).
Key specifications for 010274-044-779: Outside Diameter: 17.500 INCHES NOMINAL IN; Style Designator: FLAT; Material Thickness: 0.125 INCHES NOMINAL IN; Bolt Hole Quantity: 36. 7 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.