The Diaphragm,actuator Valve,special, cataloged under National Stock Number 4820-00-375-8994, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Wascomat of America Div of Bermil Industries Corp. Government technical data includes 6 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. 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 | 4820-00-375-8994 |
| Primary Part Number | 904111 |
| Item Name | Diaphragm,actuator Valve,special |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Wascomat of America Div of Bermil Industries Corp |
| Status | ACTIVE |
| Shank Diameter | 0.561 INCHES NOMINAL IN |
| Bead Diameter | 0.750 INCHES NOMINAL IN |
| Outside Diameter | 1.018 INCHES NOMINAL IN |
| Style Designator | SPECIAL SHAPED |
| Material Thickness | 0.050 INCHES NOMINAL IN |
| Material | RUBBER |
| 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 |
|---|---|
| 904111 PRIMARY | Wascomat of America Div of Bermil Industries Corp (USA) |
NSN 4820-00-375-8994 is a Diaphragm,actuator Valve,special, manufactured by Wascomat of America Div of Bermil Industries Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-375-8994 has 1 manufacturer part number on file: 904111 (Wascomat of America Div of Bermil Industries Corp).
1 possible match (shared part number, not a government interchangeability claim): 1710-00-872-5471. Verify interchangeability with system specifications before substitution.
Key specifications for 904111: Shank Diameter: 0.561 INCHES NOMINAL IN; Overall Height: 0.375 INCHES NOMINAL IN; Bead Diameter: 0.750 INCHES NOMINAL IN; Outside Diameter: 1.018 INCHES NOMINAL IN. 6 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.