The Diaphragm,actuator Valve,special, cataloged under National Stock Number 4820-01-364-8914, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bellofram Corp Diaphragm Div. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-364-8914 |
| Primary Part Number | ABC3-550-500-337-FBJ-1 |
| Item Name | Diaphragm,actuator Valve,special |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Bellofram Corp Diaphragm Div |
| Status | ACTIVE |
| Temp Rating | 120.0 CELSIUS NOMINAL DEGC |
| Taper Minor Diameter | 5.050 INCHES NOMINAL IN |
| Taper Major Diameter | 5.550 INCHES NOMINAL IN |
| Bolt Hole Quantity | 6 |
| Center Hole Diameter | 0.660 INCHES NOMINAL IN |
| Media for Which Designed | AIR |
| Material | PLASTIC POLYVINYL AND RUBBER |
| Hole Diameter | 0.250 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 |
|---|---|
| ABC3-550-500-337-FBJ-1 PRIMARY | Bellofram Corp Diaphragm Div (USA) |
| Reference | Meaning |
|---|---|
| 53X-02-285 | 7/2 Vendor item drawing reference Naval Sea Systems Command |
NSN 4820-01-364-8914 is a Diaphragm,actuator Valve,special, manufactured by Bellofram Corp Diaphragm Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-364-8914 has 1 manufacturer part number on file: ABC3-550-500-337-FBJ-1 (Bellofram Corp Diaphragm Div).
Key specifications for ABC3-550-500-337-FBJ-1: Temp Rating: 120.0 CELSIUS NOMINAL DEGC; Taper Minor Diameter: 5.050 INCHES NOMINAL IN; Taper Major Diameter: 5.550 INCHES NOMINAL IN; Bolt Hole Quantity: 6. 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.