The Diaphragm,actuator Valve,special, cataloged under National Stock Number 4820-01-354-5633, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bellofram Corporation. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-354-5633 |
| Primary Part Number | 4-900-700-HCJ-1 |
| Item Name | Diaphragm,actuator Valve,special |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Bellofram Corporation |
| Status | ACTIVE |
| Pressure Rating | 194.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Temp Rating | 120.0 CELSIUS NOMINAL DEGC |
| Outside Diameter | 9.000 INCHES NOMINAL IN |
| Style Designator | SPECIAL SHAPED |
| Material Thickness | 0.045 INCHES NOMINAL IN |
| Bolt Hole Quantity | 12 |
| Bolt Circle Diameter | 10.438 INCHES NOMINAL IN |
| Center Hole Diameter | 1.000 INCHES NOMINAL IN |
| Material | RUBBER |
| Hole Diameter | 0.281 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 |
|---|---|
| 0401A0010 | Lockheed Martin Corporation Div Rms (USA) |
| 4-900-700-HCJ-1 PRIMARY | Bellofram Corporation (USA) |
| Reference | Meaning |
|---|---|
| 0401A0010 | 5/9 Secondary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
| 4-900-(825)-700-HCJ-1 | 5/9 Secondary reference Bellofram Corporation |
NSN 4820-01-354-5633 is a Diaphragm,actuator Valve,special, manufactured by Bellofram Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-354-5633 has 2 manufacturer part numbers on file: 0401A0010 (Lockheed Martin Corporation Div Rms), 4-900-700-HCJ-1 (Bellofram Corporation).
Key specifications for 4-900-700-HCJ-1: Pressure Rating: 194.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Temp Rating: 120.0 CELSIUS NOMINAL DEGC; Outside Diameter: 9.000 INCHES NOMINAL IN; Style Designator: SPECIAL SHAPED. 10 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.