The Piston,valve, cataloged under National Stock Number 4820-01-650-6860, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Flowserve Us, Inc. Dba Automax Actuators Div Flow Control Division. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-650-6860 |
| Primary Part Number | 2728-5-39 |
| Item Name | Piston,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Flowserve Us, Inc. Dba Automax Actuators Div Flow Control Division |
| Status | ACTIVE |
| Valve Type for Which Designed | CHECK |
| Valve Model Number for Which Designed | 2696-5 |
| Outside Diameter | 1.375 INCHES NOMINAL IN |
| Material Document and Classification | ASTM B-21 ASSN STD SINGLE MATERIAL RESPONSE |
| Valve Design Control Activity | 5XH59 |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 2728-5-39 PRIMARY | Flowserve Us, Inc. Dba Automax Actuators Div Flow Control Division (USA) |
| Reference | Meaning |
|---|---|
| 2696-5 NO 39 | D/9 Drawing number reference only Flowserve Us, Inc. Dba Automax Actuators Div Flow Control Division |
NSN 4820-01-650-6860 is a Piston,valve, manufactured by Flowserve Us, Inc. Dba Automax Actuators Div Flow Control Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-650-6860 has 1 manufacturer part number on file: 2728-5-39 (Flowserve Us, Inc. Dba Automax Actuators Div Flow Control Division).
Key specifications for 2728-5-39: Valve Type for Which Designed: CHECK; Valve Model Number for Which Designed: 2696-5; Outside Diameter: 1.375 INCHES NOMINAL IN; Material Document and Classification: ASTM B-21 ASSN STD SINGLE MATERIAL RESPONSE. 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.