The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-913-1126, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Pressure Products Industries Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-913-1126 |
| Primary Part Number | B-5168-289-01 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Pressure Products Industries Inc |
| Status | ACTIVE |
| Outside Diameter | 7.262 INCHES NOMINAL IN |
| Style Designator | FLAT |
| Material Thickness | 0.020 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 5.484 INCHES NOMINAL IN |
| Media for Which Designed | AIR |
| Material | COPPER ALLOY |
| Hole Diameter | 0.208 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 |
|---|---|
| B-5168-289-01 PRIMARY | Pressure Products Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| BP516828901 | 5/9 Secondary reference Pressure Products Industries Inc |
| B4052B | 5/9 Secondary reference Pressure Products Industries Inc |
NSN 4820-00-913-1126 is a Diaphragm,valve,flat, manufactured by Pressure Products Industries Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-913-1126 has 1 manufacturer part number on file: B-5168-289-01 (Pressure Products Industries Inc).
Key specifications for B-5168-289-01: Outside Diameter: 7.262 INCHES NOMINAL IN; Style Designator: FLAT; Material Thickness: 0.020 INCHES NOMINAL IN; Bolt Hole Quantity: 4. 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.