The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-174-9225, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc. Government technical data includes 3 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-174-9225 |
| Primary Part Number | 2602156000 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc |
| Status | ACTIVE |
| Outside Diameter | 2.000 INCHES NOMINAL IN |
| Media for Which Designed | AIR |
| 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 |
|---|---|
| 2602156 | Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc (USA) |
| 2602156000 PRIMARY | Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc (USA) |
NSN 4820-01-174-9225 is a Diaphragm,valve,flat, manufactured by Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-174-9225 has 2 manufacturer part numbers on file: 2602156 (Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc), 2602156000 (Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc).
Key specifications for 2602156000: Outside Diameter: 2.000 INCHES NOMINAL IN; Special Features: FORMED DIAPHRAGM FOR 0.500 PLASTIC DIAPHRAGM VALVE 520-FD;Y SHAPE WITH HOLE IN CENTER; Media for Which Designed: AIR; Material: RUBBER. 3 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.