The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-658-3019, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Elliott Company Div Jeannette. Government technical data includes 8 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-658-3019 |
| Primary Part Number | 42B24-394 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Elliott Company Div Jeannette |
| Status | ACTIVE |
| Outside Diameter | 7.688 INCHES NOMINAL IN |
| Style Designator | FLAT |
| Material Thickness | 0.076 INCHES NOMINAL IN |
| Bolt Hole Quantity | 8 |
| Bolt Circle Diameter | 6.938 INCHES NOMINAL IN |
| Center Hole Diameter | 0.312 INCHES NOMINAL IN |
| Material | RUBBER |
| Hole Diameter | 0.405 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 |
|---|---|
| 42B24-394 | Elliott Company Div Jeannette (USA) |
| Reference | Meaning |
|---|---|
| A9630-2PC39 | 5/9 Secondary reference Dresser Industries Inc Masoneilan North American Opns Dresser Valve and Controls Div |
| 10273-12 | 5/9 Secondary reference Dresser Industries Inc Masoneilan North American Opns Dresser Valve and Controls Div |
| 10273-12-686-31144V | 5/9 Secondary reference Dresser Industries Inc Masoneilan North American Opns Dresser Valve and Controls Div |
| 010273-012-686 | 5/9 Secondary reference Dresser Industries Inc Masoneilan North American Opns Dresser Valve and Controls Div |
| 010273-032-779 | 3/9 Design control — primary reference Dresser Industries Inc Masoneilan North American Opns Dresser Valve and Controls Div |
| 42B24-394 | 5/9 Secondary reference Carrier Corp |
NSN 4820-00-658-3019 is a Diaphragm,valve,flat, manufactured by Elliott Company Div Jeannette, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-658-3019 has 1 manufacturer part number on file: 42B24-394 (Elliott Company Div Jeannette).
1 possible match (shared part number, not a government interchangeability claim): 5355-01-672-9031. Verify interchangeability with system specifications before substitution.
Key specifications for 42B24-394: Outside Diameter: 7.688 INCHES NOMINAL IN; Style Designator: FLAT; Material Thickness: 0.076 INCHES NOMINAL IN; Bolt Hole Quantity: 8. 8 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.